From: Chris Wilson <ickle@xxxxxxxxxxxxxxxxxxxxxxxx>
Call i915_user_extensions() to validate the arg->extensions pointer, and
so return consistent error numbers for the future.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Abdiel Janulgue <abdiel.janulgue@xxxxxxxxxxxxxxx>
Cc: Matthew Auld <matthew.auld@xxxxxxxxx>
---
drivers/gpu/drm/i915/gem/i915_gem_mman.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
index 37aabbfa869a..3a3f30bc8ac7 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
@@ -17,6 +17,7 @@
#include "i915_gem_object.h"
#include "i915_gem_mman.h"
#include "i915_trace.h"
+#include "i915_user_extensions.h"
#include "i915_vma.h"
static inline bool
@@ -617,9 +618,12 @@ i915_gem_mmap_offset_ioctl(struct drm_device *dev, void *data,
struct drm_i915_private *i915 = to_i915(dev);
struct drm_i915_gem_mmap_offset *args = data;
enum i915_mmap_type type;
+ int err;
- if (args->extensions)
- return -EINVAL;
+ err = i915_user_extensions(u64_to_user_ptr(args->extensions),
+ NULL, 0, NULL);
+ if (err)
+ return err;
switch (args->flags) {
case I915_MMAP_OFFSET_GTT:
--
2.24.0
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
