Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/msm: Reject fb creation from _NO_SHARE objs
It would be an error to map these into kms->vm. So reject this as early
as possible, when creating an fb.
Fixes: b58e12a66e47 ("drm/msm: Add _NO_SHARE flag")
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/714264/
Message-ID: <20260325185926.1265661-1-robin.clark@oss.qualcomm.com>
+6
-1
+6
-1
drivers/gpu/drm/msm/msm_fb.c
+6
-1
drivers/gpu/drm/msm/msm_fb.c
···
219
219
+ mode_cmd->offsets[i];
220
220
221
221
if (bos[i]->size < min_size) {
222
-
ret = -EINVAL;
222
+
ret = UERR(EINVAL, dev, "plane %d too small", i);
223
+
goto fail;
224
+
}
225
+
226
+
if (to_msm_bo(bos[i])->flags & MSM_BO_NO_SHARE) {
227
+
ret = UERR(EINVAL, dev, "Cannot map _NO_SHARE to kms vm");
223
228
goto fail;
224
229
}
225
230