drm/msm: Put back the vaddr in submit_reloc()
The error cases in submit_reloc() need to put back the virtual
address of the bo before failling. Add a single failure path
for the function.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 166e84e..b6411ea 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -290,7 +290,7 @@
{
uint32_t i, last_offset = 0;
uint32_t *ptr;
- int ret;
+ int ret = 0;
if (offset % 4) {
DRM_ERROR("non-aligned cmdstream buffer: %u\n", offset);
@@ -318,12 +318,13 @@
ret = copy_from_user(&submit_reloc, userptr, sizeof(submit_reloc));
if (ret)
- return -EFAULT;
+ goto out;
if (submit_reloc.submit_offset % 4) {
DRM_ERROR("non-aligned reloc offset: %u\n",
submit_reloc.submit_offset);
- return -EINVAL;
+ ret = -EINVAL;
+ goto out;
}
/* offset in dwords: */
@@ -332,12 +333,13 @@
if ((off >= (obj->base.size / 4)) ||
(off < last_offset)) {
DRM_ERROR("invalid offset %u at reloc %u\n", off, i);
- return -EINVAL;
+ ret = -EINVAL;
+ goto out;
}
ret = submit_bo(submit, submit_reloc.reloc_idx, NULL, &iova, &valid);
if (ret)
- return ret;
+ goto out;
if (valid)
continue;
@@ -354,9 +356,10 @@
last_offset = off;
}
+out:
msm_gem_put_vaddr_locked(&obj->base);
- return 0;
+ return ret;
}
static void submit_cleanup(struct msm_gem_submit *submit)