From 0220531a13b83d0049dcf1391a5a0cb10346962f Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 13 Sep 2015 14:15:01 +0200 Subject: pktcdvd: drop null test before destroy functions Remove unneeded NULL test. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // @@ expression x; @@ -if (x != NULL) \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x); // Signed-off-by: Julia Lawall Signed-off-by: Jiri Kosina --- drivers/block/pktcdvd.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 4c20c228184c..49375a42feb9 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -2822,8 +2822,7 @@ out_new_dev: out_mem2: put_disk(disk); out_mem: - if (pd->rb_pool) - mempool_destroy(pd->rb_pool); + mempool_destroy(pd->rb_pool); kfree(pd); out_mutex: mutex_unlock(&ctl_mutex); -- cgit v1.2.3 From 061eebba3d3077186609da7d8029e0fd89f194e7 Mon Sep 17 00:00:00 2001 From: Andrew Murray Date: Mon, 10 Aug 2015 12:02:09 +0100 Subject: UBI: Update comments to reflect UBI_METAONLY flag This patch trivially updates code comments to reflect the addition of the UBI_METAONLY flag - as discussed https://lkml.org/lkml/2014/10/29/764 Cc: Richard Weinberger Cc: trivial@kernel.org Signed-off-by: Andrew Murray Signed-off-by: Jiri Kosina --- drivers/mtd/ubi/gluebi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/ubi/gluebi.c b/drivers/mtd/ubi/gluebi.c index b93807b4c459..cb7c075f2144 100644 --- a/drivers/mtd/ubi/gluebi.c +++ b/drivers/mtd/ubi/gluebi.c @@ -112,8 +112,8 @@ static int gluebi_get_device(struct mtd_info *mtd) * The MTD device is already referenced and this is just one * more reference. MTD allows many users to open the same * volume simultaneously and do not distinguish between - * readers/writers/exclusive openers as UBI does. So we do not - * open the UBI volume again - just increase the reference + * readers/writers/exclusive/meta openers as UBI does. So we do + * not open the UBI volume again - just increase the reference * counter and return. */ gluebi->refcnt += 1; -- cgit v1.2.3 From d9902d597ac54c8abc02e37492e2bc102f31e83f Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 12 Aug 2015 15:59:41 +0530 Subject: drivers: misc: Drop unlikely before IS_ERR(_OR_NULL) IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag and there is no need to do that again from its callers. Drop it. Signed-off-by: Viresh Kumar Signed-off-by: Jiri Kosina --- drivers/misc/c2port/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/c2port/core.c b/drivers/misc/c2port/core.c index 464419b36440..cc8645b5369d 100644 --- a/drivers/misc/c2port/core.c +++ b/drivers/misc/c2port/core.c @@ -926,7 +926,7 @@ struct c2port_device *c2port_device_register(char *name, c2dev->dev = device_create(c2port_class, NULL, 0, c2dev, "c2port%d", c2dev->id); - if (unlikely(IS_ERR(c2dev->dev))) { + if (IS_ERR(c2dev->dev)) { ret = PTR_ERR(c2dev->dev); goto error_device_create; } -- cgit v1.2.3 From bf69a3b60e4d892f8c1d7a6b18cf84aaa7acd43f Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 12 Aug 2015 15:59:42 +0530 Subject: drivers: net: Drop unlikely before IS_ERR(_OR_NULL) IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag and there is no need to do that again from its callers. Drop it. Acked-by: Murali Karicheri Signed-off-by: Viresh Kumar Signed-off-by: Jiri Kosina --- drivers/net/ethernet/ti/netcp_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/ti/netcp_core.c b/drivers/net/ethernet/ti/netcp_core.c index 9749dfd78c43..734a6c435840 100644 --- a/drivers/net/ethernet/ti/netcp_core.c +++ b/drivers/net/ethernet/ti/netcp_core.c @@ -1016,7 +1016,7 @@ netcp_tx_map_skb(struct sk_buff *skb, struct netcp_intf *netcp) } desc = knav_pool_desc_get(netcp->tx_pool); - if (unlikely(IS_ERR_OR_NULL(desc))) { + if (IS_ERR_OR_NULL(desc)) { dev_err(netcp->ndev_dev, "out of TX desc\n"); dma_unmap_single(dev, dma_addr, pkt_len, DMA_TO_DEVICE); return NULL; @@ -1049,7 +1049,7 @@ netcp_tx_map_skb(struct sk_buff *skb, struct netcp_intf *netcp) } ndesc = knav_pool_desc_get(netcp->tx_pool); - if (unlikely(IS_ERR_OR_NULL(ndesc))) { + if (IS_ERR_OR_NULL(ndesc)) { dev_err(netcp->ndev_dev, "out of TX desc for frags\n"); dma_unmap_page(dev, dma_addr, buf_len, DMA_TO_DEVICE); goto free_descs; -- cgit v1.2.3 From a1c83681d52704c766d576bea2d7f2f99e8dde23 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 12 Aug 2015 15:59:44 +0530 Subject: fs: Drop unlikely before IS_ERR(_OR_NULL) IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag and there is no need to do that again from its callers. Drop it. Signed-off-by: Viresh Kumar Reviewed-by: Jeff Layton Reviewed-by: David Howells Reviewed-by: Steve French Signed-off-by: Jiri Kosina --- fs/cifs/readdir.c | 2 +- fs/ecryptfs/inode.c | 2 +- fs/ext4/extents.c | 6 +++--- fs/ext4/namei.c | 2 +- fs/namei.c | 4 ++-- fs/ncpfs/dir.c | 2 +- fs/nfs/objlayout/objio_osd.c | 2 +- fs/proc/proc_sysctl.c | 2 +- 8 files changed, 11 insertions(+), 11 deletions(-) diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index b1eede3678a9..0557c45e9c33 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -84,7 +84,7 @@ cifs_prime_dcache(struct dentry *parent, struct qstr *name, cifs_dbg(FYI, "%s: for %s\n", __func__, name->name); dentry = d_hash_and_lookup(parent, name); - if (unlikely(IS_ERR(dentry))) + if (IS_ERR(dentry)) return; if (dentry) { diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 3c4db1172d22..e2e47ba5d313 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -270,7 +270,7 @@ ecryptfs_create(struct inode *directory_inode, struct dentry *ecryptfs_dentry, ecryptfs_inode = ecryptfs_do_create(directory_inode, ecryptfs_dentry, mode); - if (unlikely(IS_ERR(ecryptfs_inode))) { + if (IS_ERR(ecryptfs_inode)) { ecryptfs_printk(KERN_WARNING, "Failed to create file in" "lower filesystem\n"); rc = PTR_ERR(ecryptfs_inode); diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 2553aa8b608d..799f01714767 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -899,7 +899,7 @@ ext4_find_extent(struct inode *inode, ext4_lblk_t block, bh = read_extent_tree_block(inode, path[ppos].p_block, --i, flags); - if (unlikely(IS_ERR(bh))) { + if (IS_ERR(bh)) { ret = PTR_ERR(bh); goto err; } @@ -5792,7 +5792,7 @@ ext4_swap_extents(handle_t *handle, struct inode *inode1, int split = 0; path1 = ext4_find_extent(inode1, lblk1, NULL, EXT4_EX_NOCACHE); - if (unlikely(IS_ERR(path1))) { + if (IS_ERR(path1)) { *erp = PTR_ERR(path1); path1 = NULL; finish: @@ -5800,7 +5800,7 @@ ext4_swap_extents(handle_t *handle, struct inode *inode1, goto repeat; } path2 = ext4_find_extent(inode2, lblk2, NULL, EXT4_EX_NOCACHE); - if (unlikely(IS_ERR(path2))) { + if (IS_ERR(path2)) { *erp = PTR_ERR(path2); path2 = NULL; goto finish; diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 011dcfb5cce3..0554e4be1fb8 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1429,7 +1429,7 @@ restart: } num++; bh = ext4_getblk(NULL, dir, b++, 0); - if (unlikely(IS_ERR(bh))) { + if (IS_ERR(bh)) { if (ra_max == 0) { ret = bh; goto cleanup_and_exit; diff --git a/fs/namei.c b/fs/namei.c index fbbcf0993312..d3f84069a9aa 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1942,7 +1942,7 @@ OK: if (err) { const char *s = get_link(nd); - if (unlikely(IS_ERR(s))) + if (IS_ERR(s)) return PTR_ERR(s); err = 0; if (unlikely(!s)) { @@ -3356,7 +3356,7 @@ struct file *do_file_open_root(struct dentry *dentry, struct vfsmount *mnt, return ERR_PTR(-ELOOP); filename = getname_kernel(name); - if (unlikely(IS_ERR(filename))) + if (IS_ERR(filename)) return ERR_CAST(filename); set_nameidata(&nd, -1, filename); diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c index 93575e91a7aa..356816e7bc90 100644 --- a/fs/ncpfs/dir.c +++ b/fs/ncpfs/dir.c @@ -597,7 +597,7 @@ ncp_fill_cache(struct file *file, struct dir_context *ctx, qname.name = __name; newdent = d_hash_and_lookup(dentry, &qname); - if (unlikely(IS_ERR(newdent))) + if (IS_ERR(newdent)) goto end_advance; if (!newdent) { newdent = d_alloc(dentry, &qname); diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c index 5aaed363556a..5c0c6b58157f 100644 --- a/fs/nfs/objlayout/objio_osd.c +++ b/fs/nfs/objlayout/objio_osd.c @@ -124,7 +124,7 @@ objio_alloc_deviceid_node(struct nfs_server *server, struct pnfs_device *pdev, retry_lookup: od = osduld_info_lookup(&odi); - if (unlikely(IS_ERR(od))) { + if (IS_ERR(od)) { err = PTR_ERR(od); dprintk("%s: osduld_info_lookup => %d\n", __func__, err); if (err == -ENODEV && retry_flag) { diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index fdda62e6115e..fe5b6e6c4671 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -948,7 +948,7 @@ static struct ctl_dir *get_subdir(struct ctl_dir *dir, found: subdir->header.nreg++; failed: - if (unlikely(IS_ERR(subdir))) { + if (IS_ERR(subdir)) { pr_err("sysctl could not get directory: "); sysctl_print_dir(dir); pr_cont("/%*.*s %ld\n", -- cgit v1.2.3 From 18e8e5c7a9f9aef1b45e0729dc340989d5a954d0 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 12 Aug 2015 15:59:46 +0530 Subject: mm: Drop unlikely before IS_ERR(_OR_NULL) IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag and there is no need to do that again from its callers. Drop it. Acked-by: Kirill A. Shutemov Signed-off-by: Viresh Kumar Signed-off-by: Jiri Kosina --- mm/huge_memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index c107094f79ba..e14652480c59 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -149,7 +149,7 @@ static int start_stop_khugepaged(void) if (!khugepaged_thread) khugepaged_thread = kthread_run(khugepaged, NULL, "khugepaged"); - if (unlikely(IS_ERR(khugepaged_thread))) { + if (IS_ERR(khugepaged_thread)) { pr_err("khugepaged: kthread_run(khugepaged) failed\n"); err = PTR_ERR(khugepaged_thread); khugepaged_thread = NULL; -- cgit v1.2.3 From b5ffe634425591db5692fa242da0bbe20d1f76a7 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 12 Aug 2015 15:59:47 +0530 Subject: net: Drop unlikely before IS_ERR(_OR_NULL) IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag and there is no need to do that again from its callers. Drop it. Acked-by: Neil Horman Signed-off-by: Viresh Kumar Signed-off-by: Jiri Kosina --- net/openvswitch/datapath.c | 2 +- net/sctp/socket.c | 2 +- net/socket.c | 6 +++--- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c index ff8c4a4c1609..01d69680ba5d 100644 --- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -1143,7 +1143,7 @@ static int ovs_flow_cmd_set(struct sk_buff *skb, struct genl_info *info) info, OVS_FLOW_CMD_NEW, false, ufid_flags); - if (unlikely(IS_ERR(reply))) { + if (IS_ERR(reply)) { error = PTR_ERR(reply); goto err_unlock_ovs; } diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 17bef01b9aa3..897c01c029ca 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -4475,7 +4475,7 @@ static int sctp_getsockopt_peeloff(struct sock *sk, int len, char __user *optval } newfile = sock_alloc_file(newsock, 0, NULL); - if (unlikely(IS_ERR(newfile))) { + if (IS_ERR(newfile)) { put_unused_fd(retval); sock_release(newsock); return PTR_ERR(newfile); diff --git a/net/socket.c b/net/socket.c index 9963a0b53a64..dd2c247c99e3 100644 --- a/net/socket.c +++ b/net/socket.c @@ -373,7 +373,7 @@ struct file *sock_alloc_file(struct socket *sock, int flags, const char *dname) file = alloc_file(&path, FMODE_READ | FMODE_WRITE, &socket_file_ops); - if (unlikely(IS_ERR(file))) { + if (IS_ERR(file)) { /* drop dentry, keep inode */ ihold(d_inode(path.dentry)); path_put(&path); @@ -1303,7 +1303,7 @@ SYSCALL_DEFINE4(socketpair, int, family, int, type, int, protocol, } newfile1 = sock_alloc_file(sock1, flags, NULL); - if (unlikely(IS_ERR(newfile1))) { + if (IS_ERR(newfile1)) { err = PTR_ERR(newfile1); goto out_put_unused_both; } @@ -1467,7 +1467,7 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr, goto out_put; } newfile = sock_alloc_file(newsock, flags, sock->sk->sk_prot_creator->name); - if (unlikely(IS_ERR(newfile))) { + if (IS_ERR(newfile)) { err = PTR_ERR(newfile); put_unused_fd(newfd); sock_release(newsock); -- cgit v1.2.3 From 636db7a96cbd95f7842246a3f5f842ba791cd393 Mon Sep 17 00:00:00 2001 From: Ulf Magnusson Date: Fri, 4 Sep 2015 01:54:22 +0200 Subject: debugfs: document that debugfs_remove*() accepts NULL and error values According to commit a59d6293e537 ("debugfs: change parameter check in debugfs_remove() functions"), this is meant to make cleanup easier for callers. In that case it ought to be documented. Signed-off-by: Ulf Magnusson Signed-off-by: Jiri Kosina --- fs/debugfs/inode.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index c711be8d6a3c..5d8f35f1382a 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -533,7 +533,8 @@ static int __debugfs_remove(struct dentry *dentry, struct dentry *parent) /** * debugfs_remove - removes a file or directory from the debugfs filesystem * @dentry: a pointer to a the dentry of the file or directory to be - * removed. + * removed. If this parameter is NULL or an error value, nothing + * will be done. * * This function removes a file or directory in debugfs that was previously * created with a call to another debugfs function (like @@ -565,7 +566,8 @@ EXPORT_SYMBOL_GPL(debugfs_remove); /** * debugfs_remove_recursive - recursively removes a directory - * @dentry: a pointer to a the dentry of the directory to be removed. + * @dentry: a pointer to a the dentry of the directory to be removed. If this + * parameter is NULL or an error value, nothing will be done. * * This function recursively removes a directory tree in debugfs that * was previously created with a call to another debugfs function -- cgit v1.2.3 From 1207775428d57508fd1b4c9403833463a6b632c2 Mon Sep 17 00:00:00 2001 From: Rolf Eike Beer Date: Fri, 4 Sep 2015 20:49:14 +0200 Subject: class_find_device: fix reference to argument "match" There is no argument "fn". Signed-off-by: Rolf Eike Beer Signed-off-by: Jiri Kosina --- drivers/base/class.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/class.c b/drivers/base/class.c index 6e810881e48b..71059e32bebc 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -406,7 +406,7 @@ EXPORT_SYMBOL_GPL(class_for_each_device); * * Note, you will need to drop the reference with put_device() after use. * - * @fn is allowed to do anything including calling back into class + * @match is allowed to do anything including calling back into class * code. There's no locking restriction. */ struct device *class_find_device(struct class *class, struct device *start, -- cgit v1.2.3 From 0dec1474ab27f308c0d6ef542ef36100712dc81b Mon Sep 17 00:00:00 2001 From: Rolf Eike Beer Date: Fri, 4 Sep 2015 20:52:45 +0200 Subject: Kconfig: remove comment about scsi_wait_scan module This module has been removed in commit 6072609d9bb91ff54aee3ef29304bd5b4fc88aae ([SCSI] Remove scsi_wait_scan module), so this module is gone since 3.6. Signed-off-by: Rolf Eike Beer Signed-off-by: Jiri Kosina --- drivers/scsi/Kconfig | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 456e1567841c..ade5715aeec1 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -242,13 +242,6 @@ config SCSI_SCAN_ASYNC system continues booting, and even probe devices on different busses in parallel, leading to a significant speed-up. - If you have built SCSI as modules, enabling this option can - be a problem as the devices may not have been found by the - time your system expects them to have been. You can load the - scsi_wait_scan module to ensure that all scans have completed. - If you build your SCSI drivers into the kernel, then everything - will work fine if you say Y here. - You can override this choice by specifying "scsi_mod.scan=sync" or async on the kernel's command line. -- cgit v1.2.3 From 0c6cac7ab44435d8837931a561cc4d58530cc032 Mon Sep 17 00:00:00 2001 From: Bastien Nocera Date: Thu, 10 Sep 2015 14:46:40 +0200 Subject: hwmon: applesmc: fix comment typos s/ressources/resources/ Signed-off-by: Bastien Nocera Signed-off-by: Jiri Kosina --- drivers/hwmon/applesmc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c index 0af63da6b603..1f5e956941b1 100644 --- a/drivers/hwmon/applesmc.c +++ b/drivers/hwmon/applesmc.c @@ -1138,7 +1138,7 @@ out: return ret; } -/* Create accelerometer ressources */ +/* Create accelerometer resources */ static int applesmc_create_accelerometer(void) { struct input_dev *idev; @@ -1191,7 +1191,7 @@ out: return ret; } -/* Release all ressources used by the accelerometer */ +/* Release all resources used by the accelerometer */ static void applesmc_release_accelerometer(void) { if (!smcreg.has_accelerometer) -- cgit v1.2.3 From 8d090f47315507c3064ca4eefa9a1da52390b52e Mon Sep 17 00:00:00 2001 From: Petr Mladek Date: Mon, 5 Oct 2015 14:39:52 +0200 Subject: bcache: Really show state of work pending bit WORK_STRUCT_PENDING is a mask for testing the pending bit. test_bit() expects the number of the bit and we need to use WORK_STRUCT_PENDING_BIT there. Also work_data_bits() is defined in workqueues.h now. I have noticed this just by chance when looking how WORK_STRUCT_PENDING_BIT is used. The change is compile tested. Signed-off-by: Petr Mladek Signed-off-by: Jiri Kosina --- drivers/md/bcache/closure.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/md/bcache/closure.c b/drivers/md/bcache/closure.c index 7a228de95fd7..9eaf1d6e8302 100644 --- a/drivers/md/bcache/closure.c +++ b/drivers/md/bcache/closure.c @@ -167,8 +167,6 @@ EXPORT_SYMBOL(closure_debug_destroy); static struct dentry *debug; -#define work_data_bits(work) ((unsigned long *)(&(work)->data)) - static int debug_seq_show(struct seq_file *f, void *data) { struct closure *cl; @@ -182,7 +180,7 @@ static int debug_seq_show(struct seq_file *f, void *data) r & CLOSURE_REMAINING_MASK); seq_printf(f, "%s%s%s%s\n", - test_bit(WORK_STRUCT_PENDING, + test_bit(WORK_STRUCT_PENDING_BIT, work_data_bits(&cl->work)) ? "Q" : "", r & CLOSURE_RUNNING ? "R" : "", r & CLOSURE_STACK ? "S" : "", -- cgit v1.2.3