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drm/xe/vm: Fix error handling in xe_vm_query_vmas_attrs_ioctl()

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copy_to_user() returns the number of bytes not copied on failure, not a
negative error code. Update the logic to return -EFAULT instead of the
number of bytes to correctly signal the error.

Fixes: 418807860e ("drm/xe/uapi: Add UAPI for querying VMA count and memory attributes")
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Link: https://lore.kernel.org/r/20250828104933.3839825-3-himal.prasad.ghimiray@intel.com
Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
This commit is contained in:
Himal Prasad Ghimiray 2025-08-28 16:19:33 +05:30
parent 294912f93d
commit fece859855
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/xe/xe_vm.c
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@ -2288,6 +2288,8 @@ int xe_vm_query_vmas_attrs_ioctl(struct drm_device *dev, void *data, struct drm_
err = copy_to_user(attrs_user, mem_attrs,
args->sizeof_mem_range_attr * args->num_mem_ranges);
if (err)
err = -EFAULT;
free_mem_attrs:
kvfree(mem_attrs);