diff options
author | Markus Elfring <elfring@users.sourceforge.net> | 2017-08-25 10:01:16 +0200 |
---|---|---|
committer | Martyn Welch <martyn.welch@collabora.co.uk> | 2017-10-13 22:32:02 +0200 |
commit | 2444d37fb01c05adb04cb3297097e02f81024616 (patch) | |
tree | 9860201616b163d0cacc0ac6a4a9896c8a8ff3c9 /drivers/vme/bridges | |
parent | vme: fake: Improve five size determinations in fake_init() (diff) | |
download | linux-2444d37fb01c05adb04cb3297097e02f81024616.tar.xz linux-2444d37fb01c05adb04cb3297097e02f81024616.zip |
vme: fake: Adjust 11 checks for null pointers
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The script “checkpatch.pl” pointed information out like the following.
Comparison to NULL could be written …
Thus fix the affected source code places.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Martyn Welch <martyn@welchs.me.uk>
Diffstat (limited to 'drivers/vme/bridges')
-rw-r--r-- | drivers/vme/bridges/vme_fake.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/vme/bridges/vme_fake.c b/drivers/vme/bridges/vme_fake.c index 39f84df44557..7d83691047f4 100644 --- a/drivers/vme/bridges/vme_fake.c +++ b/drivers/vme/bridges/vme_fake.c @@ -409,7 +409,7 @@ static void fake_lm_check(struct fake_driver *bridge, unsigned long long addr, /* Each location monitor covers 8 bytes */ if (((lm_base + (8 * i)) <= addr) && ((lm_base + (8 * i) + 8) > addr)) { - if (bridge->lm_callback[i] != NULL) + if (bridge->lm_callback[i]) bridge->lm_callback[i]( bridge->lm_data[i]); } @@ -866,7 +866,7 @@ static int fake_lm_set(struct vme_lm_resource *lm, unsigned long long lm_base, /* If we already have a callback attached, we can't move it! */ for (i = 0; i < lm->monitors; i++) { - if (bridge->lm_callback[i] != NULL) { + if (bridge->lm_callback[i]) { mutex_unlock(&lm->mtx); pr_err("Location monitor callback attached, can't reset\n"); return -EBUSY; @@ -940,7 +940,7 @@ static int fake_lm_attach(struct vme_lm_resource *lm, int monitor, } /* Check that a callback isn't already attached */ - if (bridge->lm_callback[monitor] != NULL) { + if (bridge->lm_callback[monitor]) { mutex_unlock(&lm->mtx); pr_err("Existing callback attached\n"); return -EBUSY; @@ -978,7 +978,7 @@ static int fake_lm_detach(struct vme_lm_resource *lm, int monitor) /* If all location monitors disabled, disable global Location Monitor */ tmp = 0; for (i = 0; i < lm->monitors; i++) { - if (bridge->lm_callback[i] != NULL) + if (bridge->lm_callback[i]) tmp = 1; } @@ -1003,7 +1003,7 @@ static void *fake_alloc_consistent(struct device *parent, size_t size, { void *alloc = kmalloc(size, GFP_KERNEL); - if (alloc != NULL) + if (alloc) *dma = fake_ptr_to_pci(alloc); return alloc; @@ -1039,7 +1039,7 @@ static int fake_crcsr_init(struct vme_bridge *fake_bridge) /* Allocate mem for CR/CSR image */ bridge->crcsr_kernel = kzalloc(VME_CRCSR_BUF_SIZE, GFP_KERNEL); bridge->crcsr_bus = fake_ptr_to_pci(bridge->crcsr_kernel); - if (bridge->crcsr_kernel == NULL) + if (!bridge->crcsr_kernel) return -ENOMEM; vstat = fake_slot_get(fake_bridge); @@ -1076,13 +1076,13 @@ static int __init fake_init(void) * dynamically allocate this so we get one per device. */ fake_bridge = kzalloc(sizeof(*fake_bridge), GFP_KERNEL); - if (fake_bridge == NULL) { + if (!fake_bridge) { retval = -ENOMEM; goto err_struct; } fake_device = kzalloc(sizeof(*fake_device), GFP_KERNEL); - if (fake_device == NULL) { + if (!fake_device) { retval = -ENOMEM; goto err_driver; } @@ -1105,7 +1105,7 @@ static int __init fake_init(void) INIT_LIST_HEAD(&fake_bridge->master_resources); for (i = 0; i < FAKE_MAX_MASTER; i++) { master_image = kmalloc(sizeof(*master_image), GFP_KERNEL); - if (master_image == NULL) { + if (!master_image) { retval = -ENOMEM; goto err_master; } @@ -1131,7 +1131,7 @@ static int __init fake_init(void) INIT_LIST_HEAD(&fake_bridge->slave_resources); for (i = 0; i < FAKE_MAX_SLAVE; i++) { slave_image = kmalloc(sizeof(*slave_image), GFP_KERNEL); - if (slave_image == NULL) { + if (!slave_image) { retval = -ENOMEM; goto err_slave; } @@ -1153,7 +1153,7 @@ static int __init fake_init(void) /* Add location monitor to list */ INIT_LIST_HEAD(&fake_bridge->lm_resources); lm = kmalloc(sizeof(*lm), GFP_KERNEL); - if (lm == NULL) { + if (!lm) { retval = -ENOMEM; goto err_lm; } |