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drm/radeon: fix underflow in r600_cp_dispatch_texture()

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The "if (pass_size > buf->total)" can underflow so I have changed the
type of size and pass_size to unsigned to avoid this problem.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dan Carpenter 2015-07-03 11:54:28 +03:00 committed by Alex Deucher
parent 5e3c4f9070
commit 866a920403
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/radeon/r600_cp.c
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@ -2483,7 +2483,7 @@ int r600_cp_dispatch_texture(struct drm_device *dev,
struct drm_buf *buf;
u32 *buffer;
const u8 __user *data;
int size, pass_size;
unsigned int size, pass_size;
u64 src_offset, dst_offset;
if (!radeon_check_offset(dev_priv, tex->offset)) {