Move the assignment so that it happens before the if condition. This results in syntax which is easier to read.
Found by checkpath.pl
Signed-off-by: Meghana Madhyastha meghana.madhyastha@gmail.com --- drivers/gpu/drm/drm_agpsupport.c | 31 ++++++++++++++++++------------- 1 file changed, 18 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/drm_agpsupport.c b/drivers/gpu/drm/drm_agpsupport.c index 993e486..737f028 100644 --- a/drivers/gpu/drm/drm_agpsupport.c +++ b/drivers/gpu/drm/drm_agpsupport.c @@ -100,7 +100,8 @@ int drm_agp_acquire(struct drm_device *dev) return -ENODEV; if (dev->agp->acquired) return -EBUSY; - if (!(dev->agp->bridge = agp_backend_acquire(dev->pdev))) + dev->agp->bridge = agp_backend_acquire(dev->pdev); + if (!dev->agp->bridge) return -ENODEV; dev->agp->acquired = 1; return 0; @@ -200,12 +201,14 @@ int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request)
if (!dev->agp || !dev->agp->acquired) return -EINVAL; - if (!(entry = kzalloc(sizeof(*entry), GFP_KERNEL))) + entry = kzalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) return -ENOMEM;
pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE; type = (u32) request->type; - if (!(memory = agp_allocate_memory(dev->agp->bridge, pages, type))) { + memory = agp_allocate_memory(dev->agp->bridge, pages, type); + if (!memory) { kfree(entry); return -ENOMEM; } @@ -272,9 +275,8 @@ int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request)
if (!dev->agp || !dev->agp->acquired) return -EINVAL; - if (!(entry = drm_agp_lookup_entry(dev, request->handle))) - return -EINVAL; - if (!entry->bound) + entry = drm_agp_lookup_entry(dev, request->handle); + if (!entry || !entry->bound) return -EINVAL; ret = drm_unbind_agp(entry->memory); if (ret == 0) @@ -313,12 +315,12 @@ int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request)
if (!dev->agp || !dev->agp->acquired) return -EINVAL; - if (!(entry = drm_agp_lookup_entry(dev, request->handle))) - return -EINVAL; - if (entry->bound) + entry = drm_agp_lookup_entry(dev, request->handle); + if (!entry || entry->bound) return -EINVAL; page = (request->offset + PAGE_SIZE - 1) / PAGE_SIZE; - if ((retcode = drm_bind_agp(entry->memory, page))) + retcode = drm_bind_agp(entry->memory, page); + if (retcode) return retcode; entry->bound = dev->agp->base + (page << PAGE_SHIFT); DRM_DEBUG("base = 0x%lx entry->bound = 0x%lx\n", @@ -356,7 +358,8 @@ int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request)
if (!dev->agp || !dev->agp->acquired) return -EINVAL; - if (!(entry = drm_agp_lookup_entry(dev, request->handle))) + entry = drm_agp_lookup_entry(dev, request->handle); + if (!entry) return -EINVAL; if (entry->bound) drm_unbind_agp(entry->memory); @@ -394,11 +397,13 @@ struct drm_agp_head *drm_agp_init(struct drm_device *dev) { struct drm_agp_head *head = NULL;
- if (!(head = kzalloc(sizeof(*head), GFP_KERNEL))) + head = kzalloc(sizeof(*head), GFP_KERNEL); + if (!head) return NULL; head->bridge = agp_find_bridge(dev->pdev); if (!head->bridge) { - if (!(head->bridge = agp_backend_acquire(dev->pdev))) { + head->bridge = agp_backend_acquire(dev->pdev); + if (!head->bridge) { kfree(head); return NULL; }