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authorMikko Perttunen <mperttunen@nvidia.com>2018-06-20 15:03:58 +0200
committerThierry Reding <treding@nvidia.com>2018-07-09 10:33:45 +0200
commit5265f0338bc0feec6c0d544dfe005dec1a93cb93 (patch)
tree207c3c849a78c3f20cb879794cc774477588f91c /drivers/gpu
parentgpu: host1x: Check whether size of unpin isn't 0 (diff)
downloadlinux-5265f0338bc0feec6c0d544dfe005dec1a93cb93.tar.xz
linux-5265f0338bc0feec6c0d544dfe005dec1a93cb93.zip
drm/tegra: Fix comparison operator for buffer size
Here we are checking for the buffer length, not an offset for writing to, so using > is correct. The current code incorrectly rejects a command buffer ending at the memory buffer's end. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/tegra/drm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 776c1513e582..a2bd5876c633 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -398,7 +398,7 @@ int tegra_drm_submit(struct tegra_drm_context *context,
* unaligned offset is malformed and cause commands stream
* corruption on the buffer address relocation.
*/
- if (offset & 3 || offset >= obj->gem.size) {
+ if (offset & 3 || offset > obj->gem.size) {
err = -EINVAL;
goto fail;
}