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drm/amdkfd: Use kvcalloc to allocate arrays

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There were a few instances in kfd_chardev.c of kvzalloc being
used to allocate memory for an array.

Switch those to kvcalloc, which
- is the standard way of allocating a zero-initialized array
- does a check for the mul overflowing

Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
David Francis
2026-06-25 10:09:13 -04:00
committed by Alex Deucher
parent ceac787584
commit 60b048c93f
1 changed files with 6 additions and 6 deletions
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12
drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
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@@ -1917,13 +1917,13 @@ static int criu_checkpoint_devices(struct kfd_process *p,
struct kfd_criu_device_bucket *device_buckets = NULL;
int ret = 0, i;
device_buckets = kvzalloc(num_devices * sizeof(*device_buckets), GFP_KERNEL);
device_buckets = kvcalloc(num_devices, sizeof(*device_buckets), GFP_KERNEL);
if (!device_buckets) {
ret = -ENOMEM;
goto exit;
}
device_priv = kvzalloc(num_devices * sizeof(*device_priv), GFP_KERNEL);
device_priv = kvcalloc(num_devices, sizeof(*device_priv), GFP_KERNEL);
if (!device_priv) {
ret = -ENOMEM;
goto exit;
@@ -2043,17 +2043,17 @@ static int criu_checkpoint_bos(struct kfd_process *p,
int ret = 0, pdd_index, bo_index = 0, id;
void *mem;
bo_buckets = kvzalloc(num_bos * sizeof(*bo_buckets), GFP_KERNEL);
bo_buckets = kvcalloc(num_bos, sizeof(*bo_buckets), GFP_KERNEL);
if (!bo_buckets)
return -ENOMEM;
bo_privs = kvzalloc(num_bos * sizeof(*bo_privs), GFP_KERNEL);
bo_privs = kvcalloc(num_bos, sizeof(*bo_privs), GFP_KERNEL);
if (!bo_privs) {
ret = -ENOMEM;
goto exit;
}
files = kvzalloc(num_bos * sizeof(struct file *), GFP_KERNEL);
files = kvcalloc(num_bos, sizeof(struct file *), GFP_KERNEL);
if (!files) {
ret = -ENOMEM;
goto exit;
@@ -2584,7 +2584,7 @@ static int criu_restore_bos(struct kfd_process *p,
if (!bo_buckets)
return -ENOMEM;
files = kvzalloc(args->num_bos * sizeof(struct file *), GFP_KERNEL);
files = kvcalloc(args->num_bos, sizeof(struct file *), GFP_KERNEL);
if (!files) {
ret = -ENOMEM;
goto exit;