Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/amdgpu/userq: Use memdup_array_user in amdgpu_userq_wait_ioctl
Use the existing helper instead of multiplying the size.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Reviewed-by: Sunil Khatri <sunil.khatri@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
authored by
Tvrtko Ursulin
and committed by
Alex Deucher
fb1bf29a
e757981c
+7
-6
+7
-6
drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
+7
-6
drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
···
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}
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num_syncobj = wait_info->num_syncobj_handles;
682
-
syncobj_handles = memdup_user(u64_to_user_ptr(wait_info->syncobj_handles),
683
-
size_mul(sizeof(u32), num_syncobj));
682
+
syncobj_handles = memdup_array_user(u64_to_user_ptr(wait_info->syncobj_handles),
683
+
num_syncobj, sizeof(u32));
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if (IS_ERR(syncobj_handles)) {
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r = PTR_ERR(syncobj_handles);
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goto free_bo_handles_write;
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}
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num_points = wait_info->num_syncobj_timeline_handles;
690
-
timeline_handles = memdup_user(u64_to_user_ptr(wait_info->syncobj_timeline_handles),
691
-
sizeof(u32) * num_points);
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+
timeline_handles = memdup_array_user(u64_to_user_ptr(wait_info->syncobj_timeline_handles),
691
+
num_points, sizeof(u32));
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692
if (IS_ERR(timeline_handles)) {
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693
r = PTR_ERR(timeline_handles);
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694
goto free_syncobj_handles;
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}
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-
timeline_points = memdup_user(u64_to_user_ptr(wait_info->syncobj_timeline_points),
698
-
sizeof(u32) * num_points);
697
+
timeline_points = memdup_array_user(u64_to_user_ptr(wait_info->syncobj_timeline_points),
698
+
num_points, sizeof(u32));
699
+
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if (IS_ERR(timeline_points)) {
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r = PTR_ERR(timeline_points);
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goto free_timeline_handles;