3.13.11.3 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Alex Deucher <alexdeucher@xxxxxxxxx>
commit 8c79bae6a30f606b7a4e17c994bc5f72f8fdaf11 upstream.
Avoid a possible segfault.
Noticed-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/si.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 925cac0..c6cfa44 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -1470,11 +1470,13 @@ static int si_mc_load_microcode(struct radeon_device *rdev)
const __be32 *fw_data;
u32 running, blackout = 0;
u32 *io_mc_regs;
- int i, regs_size, ucode_size = rdev->mc_fw->size / 4;
+ int i, regs_size, ucode_size;
if (!rdev->mc_fw)
return -EINVAL;
+ ucode_size = rdev->mc_fw->size / 4;
+
switch (rdev->family) {
case CHIP_TAHITI:
io_mc_regs = (u32 *)&tahiti_io_mc_regs;
--
1.9.1
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