summaryrefslogtreecommitdiffstats
path: root/drivers/s390
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2024-05-21 21:09:36 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2024-05-21 21:09:36 +0200
commit2a8120d7b4827380f30b57788ff92ec5594e2194 (patch)
tree27790b72bc2748fa28d4634edd83ae7a5cecd204 /drivers/s390
parentMerge tag 'm68knommu-for-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/... (diff)
parents390/zcrypt: Use kvcalloc() instead of kvmalloc_array() (diff)
downloadlinux-2a8120d7b4827380f30b57788ff92ec5594e2194.tar.xz
linux-2a8120d7b4827380f30b57788ff92ec5594e2194.zip
Merge tag 's390-6.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Alexander Gordeev: - Switch read and write software bits for PUDs - Add missing hardware bits for PUDs and PMDs - Generate unwind information for C modules to fix GDB unwind error for vDSO functions - Create .build-id links for unstripped vDSO files to enable vDSO debugging with symbols - Use standard stack frame layout for vDSO generated stack frames to manually walk stack frames without DWARF information - Rework perf_callchain_user() and arch_stack_walk_user() functions to reduce code duplication - Skip first stack frame when walking user stack - Add basic checks to identify invalid instruction pointers when walking stack frames - Introduce and use struct stack_frame_vdso_wrapper within vDSO user wrapper code to automatically generate an asm-offset define. Also use STACK_FRAME_USER_OVERHEAD instead of STACK_FRAME_OVERHEAD to document that the code works with user space stack - Clear the backchain of the extra stack frame added by the vDSO user wrapper code. This allows the user stack walker to detect and skip the non-standard stack frame. Without this an incorrect instruction pointer would be added to stack traces. - Rewrite psw_idle() function in C to ease maintenance and further enhancements - Remove get_vtimer() function and use get_cpu_timer() instead - Mark psw variable in __load_psw_mask() as __unitialized to avoid superfluous clearing of PSW - Remove obsolete and superfluous comment about removed TIF_FPU flag - Replace memzero_explicit() and kfree() with kfree_sensitive() to fix warnings reported by Coccinelle - Wipe sensitive data and all copies of protected- or secure-keys from stack when an IOCTL fails - Both do_airq_interrupt() and do_io_interrupt() functions set CIF_NOHZ_DELAY flag. Move it in do_io_irq() to simplify the code - Provide iucv_alloc_device() and iucv_release_device() helpers, which can be used to deduplicate more or less identical IUCV device allocation and release code in four different drivers - Make use of iucv_alloc_device() and iucv_release_device() helpers to get rid of quite some code and also remove a cast to an incompatible function (clang W=1) - There is no user of iucv_root outside of the core IUCV code left. Therefore remove the EXPORT_SYMBOL - __apply_alternatives() contains a runtime check which verifies that the size of the to be patched code area is even. Convert this to a compile time check - Increase size of buffers for sending z/VM CP DIAGNOSE X'008' commands from 128 to 240 - Do not accept z/VM CP DIAGNOSE X'008' commands longer than maximally allowed - Use correct defines IPL_BP_NVME_LEN and IPL_BP0_NVME_LEN instead of IPL_BP_FCP_LEN and IPL_BP0_FCP_LEN ones to initialize NVMe reIPL block on 'scp_data' sysfs attribute update - Initialize the correct fields of the NVMe dump block, which were confused with FCP fields - Refactor macros for 'scp_data' (re-)IPL sysfs attribute to reduce code duplication - Introduce 'scp_data' sysfs attribute for dump IPL to allow tools such as dumpconf passing additional kernel command line parameters to a stand-alone dumper - Rework the CPACF query functions to use the correct RRE or RRF instruction formats and set instruction register fields correctly - Instead of calling BUG() at runtime force a link error during compile when a unsupported opcode is used with __cpacf_query() or __cpacf_check_opcode() functions - Fix a crash in ap_parse_bitmap_str() function on /sys/bus/ap/apmask or /sys/bus/ap/aqmask sysfs file update with a relative mask value - Fix "bindings complete" udev event which should be sent once all AP devices have been bound to device drivers and again when unbind/bind actions take place and all AP devices are bound again - Facility list alt_stfle_fac_list is nowhere used in the decompressor, therefore remove it there - Remove custom kprobes insn slot allocator in favour of the standard module_alloc() one, since kernel image and module areas are located within 4GB - Use kvcalloc() instead of kvmalloc_array() in zcrypt driver to avoid calling memset() with a large byte count and get rid of the sparse warning as result * tag 's390-6.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (39 commits) s390/zcrypt: Use kvcalloc() instead of kvmalloc_array() s390/kprobes: Remove custom insn slot allocator s390/boot: Remove alt_stfle_fac_list from decompressor s390/ap: Fix bind complete udev event sent after each AP bus scan s390/ap: Fix crash in AP internal function modify_bitmap() s390/cpacf: Make use of invalid opcode produce a link error s390/cpacf: Split and rework cpacf query functions s390/ipl: Introduce sysfs attribute 'scp_data' for dump ipl s390/ipl: Introduce macros for (re)ipl sysfs attribute 'scp_data' s390/ipl: Fix incorrect initialization of nvme dump block s390/ipl: Fix incorrect initialization of len fields in nvme reipl block s390/ipl: Do not accept z/VM CP diag X'008' cmds longer than max length s390/ipl: Fix size of vmcmd buffers for sending z/VM CP diag X'008' cmds s390/alternatives: Convert runtime sanity check into compile time check s390/iucv: Unexport iucv_root tty: hvc-iucv: Make use of iucv_alloc_device() s390/smsgiucv_app: Make use of iucv_alloc_device() s390/netiucv: Make use of iucv_alloc_device() s390/vmlogrdr: Make use of iucv_alloc_device() s390/iucv: Provide iucv_alloc_device() / iucv_release_device() ...
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/char/vmlogrdr.c20
-rw-r--r--drivers/s390/cio/airq.c1
-rw-r--r--drivers/s390/cio/cio.c1
-rw-r--r--drivers/s390/crypto/ap_bus.c10
-rw-r--r--drivers/s390/crypto/pkey_api.c109
-rw-r--r--drivers/s390/crypto/zcrypt_api.c9
-rw-r--r--drivers/s390/crypto/zcrypt_ccamisc.c12
-rw-r--r--drivers/s390/crypto/zcrypt_ep11misc.c6
-rw-r--r--drivers/s390/net/netiucv.c20
-rw-r--r--drivers/s390/net/smsgiucv_app.c21
10 files changed, 83 insertions, 126 deletions
diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c
index d7e408c8d0b8..c09e1e09fb66 100644
--- a/drivers/s390/char/vmlogrdr.c
+++ b/drivers/s390/char/vmlogrdr.c
@@ -728,23 +728,9 @@ static int vmlogrdr_register_device(struct vmlogrdr_priv_t *priv)
struct device *dev;
int ret;
- dev = kzalloc(sizeof(struct device), GFP_KERNEL);
- if (dev) {
- dev_set_name(dev, "%s", priv->internal_name);
- dev->bus = &iucv_bus;
- dev->parent = iucv_root;
- dev->driver = &vmlogrdr_driver;
- dev->groups = vmlogrdr_attr_groups;
- dev_set_drvdata(dev, priv);
- /*
- * The release function could be called after the
- * module has been unloaded. It's _only_ task is to
- * free the struct. Therefore, we specify kfree()
- * directly here. (Probably a little bit obfuscating
- * but legitime ...).
- */
- dev->release = (void (*)(struct device *))kfree;
- } else
+ dev = iucv_alloc_device(vmlogrdr_attr_groups, &vmlogrdr_driver,
+ priv, priv->internal_name);
+ if (!dev)
return -ENOMEM;
ret = device_register(dev);
if (ret) {
diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c
index a108f2bf5b33..51f1cb31e4aa 100644
--- a/drivers/s390/cio/airq.c
+++ b/drivers/s390/cio/airq.c
@@ -90,7 +90,6 @@ static irqreturn_t do_airq_interrupt(int irq, void *dummy)
struct airq_struct *airq;
struct hlist_head *head;
- set_cpu_flag(CIF_NOHZ_DELAY);
tpi_info = &get_irq_regs()->tpi_info;
trace_s390_cio_adapter_int(tpi_info);
head = &airq_lists[tpi_info->isc];
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 7e759c21480e..c32e818f06db 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -535,7 +535,6 @@ static irqreturn_t do_cio_interrupt(int irq, void *dummy)
struct subchannel *sch;
struct irb *irb;
- set_cpu_flag(CIF_NOHZ_DELAY);
tpi_info = &get_irq_regs()->tpi_info;
trace_s390_cio_interrupt(tpi_info);
irb = this_cpu_ptr(&cio_irb);
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index c20b45092079..898865be0dad 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -732,9 +732,9 @@ static void ap_check_bindings_complete(void)
if (bound == apqns) {
if (!completion_done(&ap_apqn_bindings_complete)) {
complete_all(&ap_apqn_bindings_complete);
+ ap_send_bindings_complete_uevent();
pr_debug("%s all apqn bindings complete\n", __func__);
}
- ap_send_bindings_complete_uevent();
}
}
}
@@ -894,6 +894,12 @@ static int ap_device_probe(struct device *dev)
goto out;
}
+ /*
+ * Rearm the bindings complete completion to trigger
+ * bindings complete when all devices are bound again
+ */
+ reinit_completion(&ap_apqn_bindings_complete);
+
/* Add queue/card to list of active queues/cards */
spin_lock_bh(&ap_queues_lock);
if (is_queue_dev(dev))
@@ -1091,7 +1097,7 @@ EXPORT_SYMBOL(ap_hex2bitmap);
*/
static int modify_bitmap(const char *str, unsigned long *bitmap, int bits)
{
- int a, i, z;
+ unsigned long a, i, z;
char *np, sign;
/* bits needs to be a multiple of 8 */
diff --git a/drivers/s390/crypto/pkey_api.c b/drivers/s390/crypto/pkey_api.c
index dccf664a3d95..ffc0b5db55c2 100644
--- a/drivers/s390/crypto/pkey_api.c
+++ b/drivers/s390/crypto/pkey_api.c
@@ -1359,10 +1359,9 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
rc = cca_genseckey(kgs.cardnr, kgs.domain,
kgs.keytype, kgs.seckey.seckey);
pr_debug("%s cca_genseckey()=%d\n", __func__, rc);
- if (rc)
- break;
- if (copy_to_user(ugs, &kgs, sizeof(kgs)))
- return -EFAULT;
+ if (!rc && copy_to_user(ugs, &kgs, sizeof(kgs)))
+ rc = -EFAULT;
+ memzero_explicit(&kgs, sizeof(kgs));
break;
}
case PKEY_CLR2SECK: {
@@ -1374,10 +1373,8 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
rc = cca_clr2seckey(kcs.cardnr, kcs.domain, kcs.keytype,
kcs.clrkey.clrkey, kcs.seckey.seckey);
pr_debug("%s cca_clr2seckey()=%d\n", __func__, rc);
- if (rc)
- break;
- if (copy_to_user(ucs, &kcs, sizeof(kcs)))
- return -EFAULT;
+ if (!rc && copy_to_user(ucs, &kcs, sizeof(kcs)))
+ rc = -EFAULT;
memzero_explicit(&kcs, sizeof(kcs));
break;
}
@@ -1392,10 +1389,9 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
ksp.seckey.seckey, ksp.protkey.protkey,
&ksp.protkey.len, &ksp.protkey.type);
pr_debug("%s cca_sec2protkey()=%d\n", __func__, rc);
- if (rc)
- break;
- if (copy_to_user(usp, &ksp, sizeof(ksp)))
- return -EFAULT;
+ if (!rc && copy_to_user(usp, &ksp, sizeof(ksp)))
+ rc = -EFAULT;
+ memzero_explicit(&ksp, sizeof(ksp));
break;
}
case PKEY_CLR2PROTK: {
@@ -1409,10 +1405,8 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
kcp.protkey.protkey,
&kcp.protkey.len, &kcp.protkey.type);
pr_debug("%s pkey_clr2protkey()=%d\n", __func__, rc);
- if (rc)
- break;
- if (copy_to_user(ucp, &kcp, sizeof(kcp)))
- return -EFAULT;
+ if (!rc && copy_to_user(ucp, &kcp, sizeof(kcp)))
+ rc = -EFAULT;
memzero_explicit(&kcp, sizeof(kcp));
break;
}
@@ -1441,10 +1435,9 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
rc = pkey_skey2pkey(ksp.seckey.seckey, ksp.protkey.protkey,
&ksp.protkey.len, &ksp.protkey.type);
pr_debug("%s pkey_skey2pkey()=%d\n", __func__, rc);
- if (rc)
- break;
- if (copy_to_user(usp, &ksp, sizeof(ksp)))
- return -EFAULT;
+ if (!rc && copy_to_user(usp, &ksp, sizeof(ksp)))
+ rc = -EFAULT;
+ memzero_explicit(&ksp, sizeof(ksp));
break;
}
case PKEY_VERIFYKEY: {
@@ -1456,10 +1449,9 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
rc = pkey_verifykey(&kvk.seckey, &kvk.cardnr, &kvk.domain,
&kvk.keysize, &kvk.attributes);
pr_debug("%s pkey_verifykey()=%d\n", __func__, rc);
- if (rc)
- break;
- if (copy_to_user(uvk, &kvk, sizeof(kvk)))
- return -EFAULT;
+ if (!rc && copy_to_user(uvk, &kvk, sizeof(kvk)))
+ rc = -EFAULT;
+ memzero_explicit(&kvk, sizeof(kvk));
break;
}
case PKEY_GENPROTK: {
@@ -1472,10 +1464,9 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
rc = pkey_genprotkey(kgp.keytype, kgp.protkey.protkey,
&kgp.protkey.len, &kgp.protkey.type);
pr_debug("%s pkey_genprotkey()=%d\n", __func__, rc);
- if (rc)
- break;
- if (copy_to_user(ugp, &kgp, sizeof(kgp)))
- return -EFAULT;
+ if (!rc && copy_to_user(ugp, &kgp, sizeof(kgp)))
+ rc = -EFAULT;
+ memzero_explicit(&kgp, sizeof(kgp));
break;
}
case PKEY_VERIFYPROTK: {
@@ -1487,6 +1478,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
rc = pkey_verifyprotkey(kvp.protkey.protkey,
kvp.protkey.len, kvp.protkey.type);
pr_debug("%s pkey_verifyprotkey()=%d\n", __func__, rc);
+ memzero_explicit(&kvp, sizeof(kvp));
break;
}
case PKEY_KBLOB2PROTK: {
@@ -1503,12 +1495,10 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
rc = pkey_keyblob2pkey(kkey, ktp.keylen, ktp.protkey.protkey,
&ktp.protkey.len, &ktp.protkey.type);
pr_debug("%s pkey_keyblob2pkey()=%d\n", __func__, rc);
- memzero_explicit(kkey, ktp.keylen);
- kfree(kkey);
- if (rc)
- break;
- if (copy_to_user(utp, &ktp, sizeof(ktp)))
- return -EFAULT;
+ kfree_sensitive(kkey);
+ if (!rc && copy_to_user(utp, &ktp, sizeof(ktp)))
+ rc = -EFAULT;
+ memzero_explicit(&ktp, sizeof(ktp));
break;
}
case PKEY_GENSECK2: {
@@ -1534,23 +1524,23 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
pr_debug("%s pkey_genseckey2()=%d\n", __func__, rc);
kfree(apqns);
if (rc) {
- kfree(kkey);
+ kfree_sensitive(kkey);
break;
}
if (kgs.key) {
if (kgs.keylen < klen) {
- kfree(kkey);
+ kfree_sensitive(kkey);
return -EINVAL;
}
if (copy_to_user(kgs.key, kkey, klen)) {
- kfree(kkey);
+ kfree_sensitive(kkey);
return -EFAULT;
}
}
kgs.keylen = klen;
if (copy_to_user(ugs, &kgs, sizeof(kgs)))
rc = -EFAULT;
- kfree(kkey);
+ kfree_sensitive(kkey);
break;
}
case PKEY_CLR2SECK2: {
@@ -1563,11 +1553,14 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
if (copy_from_user(&kcs, ucs, sizeof(kcs)))
return -EFAULT;
apqns = _copy_apqns_from_user(kcs.apqns, kcs.apqn_entries);
- if (IS_ERR(apqns))
+ if (IS_ERR(apqns)) {
+ memzero_explicit(&kcs, sizeof(kcs));
return PTR_ERR(apqns);
+ }
kkey = kzalloc(klen, GFP_KERNEL);
if (!kkey) {
kfree(apqns);
+ memzero_explicit(&kcs, sizeof(kcs));
return -ENOMEM;
}
rc = pkey_clr2seckey2(apqns, kcs.apqn_entries,
@@ -1576,16 +1569,19 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
pr_debug("%s pkey_clr2seckey2()=%d\n", __func__, rc);
kfree(apqns);
if (rc) {
- kfree(kkey);
+ kfree_sensitive(kkey);
+ memzero_explicit(&kcs, sizeof(kcs));
break;
}
if (kcs.key) {
if (kcs.keylen < klen) {
- kfree(kkey);
+ kfree_sensitive(kkey);
+ memzero_explicit(&kcs, sizeof(kcs));
return -EINVAL;
}
if (copy_to_user(kcs.key, kkey, klen)) {
- kfree(kkey);
+ kfree_sensitive(kkey);
+ memzero_explicit(&kcs, sizeof(kcs));
return -EFAULT;
}
}
@@ -1593,7 +1589,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
if (copy_to_user(ucs, &kcs, sizeof(kcs)))
rc = -EFAULT;
memzero_explicit(&kcs, sizeof(kcs));
- kfree(kkey);
+ kfree_sensitive(kkey);
break;
}
case PKEY_VERIFYKEY2: {
@@ -1610,7 +1606,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
&kvk.cardnr, &kvk.domain,
&kvk.type, &kvk.size, &kvk.flags);
pr_debug("%s pkey_verifykey2()=%d\n", __func__, rc);
- kfree(kkey);
+ kfree_sensitive(kkey);
if (rc)
break;
if (copy_to_user(uvk, &kvk, sizeof(kvk)))
@@ -1640,12 +1636,10 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
&ktp.protkey.type);
pr_debug("%s pkey_keyblob2pkey2()=%d\n", __func__, rc);
kfree(apqns);
- memzero_explicit(kkey, ktp.keylen);
- kfree(kkey);
- if (rc)
- break;
- if (copy_to_user(utp, &ktp, sizeof(ktp)))
- return -EFAULT;
+ kfree_sensitive(kkey);
+ if (!rc && copy_to_user(utp, &ktp, sizeof(ktp)))
+ rc = -EFAULT;
+ memzero_explicit(&ktp, sizeof(ktp));
break;
}
case PKEY_APQNS4K: {
@@ -1673,7 +1667,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
rc = pkey_apqns4key(kkey, kak.keylen, kak.flags,
apqns, &nr_apqns);
pr_debug("%s pkey_apqns4key()=%d\n", __func__, rc);
- kfree(kkey);
+ kfree_sensitive(kkey);
if (rc && rc != -ENOSPC) {
kfree(apqns);
break;
@@ -1759,7 +1753,7 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
protkey = kmalloc(protkeylen, GFP_KERNEL);
if (!protkey) {
kfree(apqns);
- kfree(kkey);
+ kfree_sensitive(kkey);
return -ENOMEM;
}
rc = pkey_keyblob2pkey3(apqns, ktp.apqn_entries,
@@ -1767,23 +1761,22 @@ static long pkey_unlocked_ioctl(struct file *filp, unsigned int cmd,
protkey, &protkeylen, &ktp.pkeytype);
pr_debug("%s pkey_keyblob2pkey3()=%d\n", __func__, rc);
kfree(apqns);
- memzero_explicit(kkey, ktp.keylen);
- kfree(kkey);
+ kfree_sensitive(kkey);
if (rc) {
- kfree(protkey);
+ kfree_sensitive(protkey);
break;
}
if (ktp.pkey && ktp.pkeylen) {
if (protkeylen > ktp.pkeylen) {
- kfree(protkey);
+ kfree_sensitive(protkey);
return -EINVAL;
}
if (copy_to_user(ktp.pkey, protkey, protkeylen)) {
- kfree(protkey);
+ kfree_sensitive(protkey);
return -EFAULT;
}
}
- kfree(protkey);
+ kfree_sensitive(protkey);
ktp.pkeylen = protkeylen;
if (copy_to_user(utp, &ktp, sizeof(ktp)))
return -EFAULT;
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index eba07f8ef308..74036886ca87 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -1300,9 +1300,6 @@ void zcrypt_device_status_mask_ext(struct zcrypt_device_status_ext *devstatus)
struct zcrypt_device_status_ext *stat;
int card, queue;
- memset(devstatus, 0, MAX_ZDEV_ENTRIES_EXT
- * sizeof(struct zcrypt_device_status_ext));
-
spin_lock(&zcrypt_list_lock);
for_each_zcrypt_card(zc) {
for_each_zcrypt_queue(zq, zc) {
@@ -1607,9 +1604,9 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd,
size_t total_size = MAX_ZDEV_ENTRIES_EXT
* sizeof(struct zcrypt_device_status_ext);
- device_status = kvmalloc_array(MAX_ZDEV_ENTRIES_EXT,
- sizeof(struct zcrypt_device_status_ext),
- GFP_KERNEL);
+ device_status = kvcalloc(MAX_ZDEV_ENTRIES_EXT,
+ sizeof(struct zcrypt_device_status_ext),
+ GFP_KERNEL);
if (!device_status)
return -ENOMEM;
zcrypt_device_status_mask_ext(device_status);
diff --git a/drivers/s390/crypto/zcrypt_ccamisc.c b/drivers/s390/crypto/zcrypt_ccamisc.c
index 6087547328ce..7bef2cc4e461 100644
--- a/drivers/s390/crypto/zcrypt_ccamisc.c
+++ b/drivers/s390/crypto/zcrypt_ccamisc.c
@@ -1762,9 +1762,9 @@ static int findcard(u64 mkvp, u16 *pcardnr, u16 *pdomain,
return -EINVAL;
/* fetch status of all crypto cards */
- device_status = kvmalloc_array(MAX_ZDEV_ENTRIES_EXT,
- sizeof(struct zcrypt_device_status_ext),
- GFP_KERNEL);
+ device_status = kvcalloc(MAX_ZDEV_ENTRIES_EXT,
+ sizeof(struct zcrypt_device_status_ext),
+ GFP_KERNEL);
if (!device_status)
return -ENOMEM;
zcrypt_device_status_mask_ext(device_status);
@@ -1878,9 +1878,9 @@ int cca_findcard2(u32 **apqns, u32 *nr_apqns, u16 cardnr, u16 domain,
struct cca_info ci;
/* fetch status of all crypto cards */
- device_status = kvmalloc_array(MAX_ZDEV_ENTRIES_EXT,
- sizeof(struct zcrypt_device_status_ext),
- GFP_KERNEL);
+ device_status = kvcalloc(MAX_ZDEV_ENTRIES_EXT,
+ sizeof(struct zcrypt_device_status_ext),
+ GFP_KERNEL);
if (!device_status)
return -ENOMEM;
zcrypt_device_status_mask_ext(device_status);
diff --git a/drivers/s390/crypto/zcrypt_ep11misc.c b/drivers/s390/crypto/zcrypt_ep11misc.c
index 9bcf8fc69ebe..b43db17a4e0e 100644
--- a/drivers/s390/crypto/zcrypt_ep11misc.c
+++ b/drivers/s390/crypto/zcrypt_ep11misc.c
@@ -1588,9 +1588,9 @@ int ep11_findcard2(u32 **apqns, u32 *nr_apqns, u16 cardnr, u16 domain,
struct ep11_card_info eci;
/* fetch status of all crypto cards */
- device_status = kvmalloc_array(MAX_ZDEV_ENTRIES_EXT,
- sizeof(struct zcrypt_device_status_ext),
- GFP_KERNEL);
+ device_status = kvcalloc(MAX_ZDEV_ENTRIES_EXT,
+ sizeof(struct zcrypt_device_status_ext),
+ GFP_KERNEL);
if (!device_status)
return -ENOMEM;
zcrypt_device_status_mask_ext(device_status);
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index 8852b03f943b..039e18d46f76 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -1696,26 +1696,14 @@ static const struct attribute_group *netiucv_attr_groups[] = {
static int netiucv_register_device(struct net_device *ndev)
{
struct netiucv_priv *priv = netdev_priv(ndev);
- struct device *dev = kzalloc(sizeof(struct device), GFP_KERNEL);
+ struct device *dev;
int ret;
IUCV_DBF_TEXT(trace, 3, __func__);
- if (dev) {
- dev_set_name(dev, "net%s", ndev->name);
- dev->bus = &iucv_bus;
- dev->parent = iucv_root;
- dev->groups = netiucv_attr_groups;
- /*
- * The release function could be called after the
- * module has been unloaded. It's _only_ task is to
- * free the struct. Therefore, we specify kfree()
- * directly here. (Probably a little bit obfuscating
- * but legitime ...).
- */
- dev->release = (void (*)(struct device *))kfree;
- dev->driver = &netiucv_driver;
- } else
+ dev = iucv_alloc_device(netiucv_attr_groups, &netiucv_driver, NULL,
+ "net%s", ndev->name);
+ if (!dev)
return -ENOMEM;
ret = device_register(dev);
diff --git a/drivers/s390/net/smsgiucv_app.c b/drivers/s390/net/smsgiucv_app.c
index 0a263999f7ae..cc44cbb0028b 100644
--- a/drivers/s390/net/smsgiucv_app.c
+++ b/drivers/s390/net/smsgiucv_app.c
@@ -156,25 +156,14 @@ static int __init smsgiucv_app_init(void)
if (!MACHINE_IS_VM)
return -ENODEV;
- smsg_app_dev = kzalloc(sizeof(*smsg_app_dev), GFP_KERNEL);
- if (!smsg_app_dev)
- return -ENOMEM;
-
smsgiucv_drv = driver_find(SMSGIUCV_DRV_NAME, &iucv_bus);
- if (!smsgiucv_drv) {
- kfree(smsg_app_dev);
+ if (!smsgiucv_drv)
return -ENODEV;
- }
- rc = dev_set_name(smsg_app_dev, KMSG_COMPONENT);
- if (rc) {
- kfree(smsg_app_dev);
- goto fail;
- }
- smsg_app_dev->bus = &iucv_bus;
- smsg_app_dev->parent = iucv_root;
- smsg_app_dev->release = (void (*)(struct device *)) kfree;
- smsg_app_dev->driver = smsgiucv_drv;
+ smsg_app_dev = iucv_alloc_device(NULL, smsgiucv_drv, NULL, KMSG_COMPONENT);
+ if (!smsg_app_dev)
+ return -ENOMEM;
+
rc = device_register(smsg_app_dev);
if (rc) {
put_device(smsg_app_dev);