drm/amdkfd: Remove logically dead code in kfd_procfs_show

Commit Message

Gustavo A. R. Silva May 1, 2020, 6:56 p.m. UTC

container_of is never null, so the null check on pdd is unnecessary.

If the null check is removed, function kfd_procfs_show()
will always return before reaching "return 0", hence
such return is logically dead. So, remove it, as well.

Addresses-Coverity-ID: 1492793 ("Logically dead code")
Fixes: d4566dee849e ("drm/amdkfd: Track GPU memory utilization per process")
Signed-off-by: Gustavo A. R. Silva <[e-mail]>
---
 drivers/gpu/drm/amd/amdkfd/kfd_process.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

Patch

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index 598296034b43..63dcd30b2cdc 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -87,14 +87,11 @@  static ssize_t kfd_procfs_show(struct kobject *kobj, struct attribute *attr,
 	} else if (strncmp(attr->name, "vram_", 5) == 0) {
 		struct kfd_process_device *pdd = container_of(attr, struct kfd_process_device,
 							      attr_vram);
-		if (pdd)
-			return snprintf(buffer, PAGE_SIZE, "%llu\n", READ_ONCE(pdd->vram_usage));
+		return snprintf(buffer, PAGE_SIZE, "%llu\n", READ_ONCE(pdd->vram_usage));
 	} else {
 		pr_err("Invalid attribute");
 		return -EINVAL;
 	}
-
-	return 0;
 }
 
 static void kfd_procfs_kobj_release(struct kobject *kobj)