From: Alex Deucher <alexdeucher@xxxxxxxxx>
This patch does NOT apply to the 3.12 stable tree. If you still want
it applied, please provide a backport.
===============
commit bcddee29b0b87af3aeda953840f97b356b24dc5e upstream.
Avoid a possible segfault.
Noticed-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
drivers/gpu/drm/radeon/cik.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index 7e430450bac0..199eb194716f 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -1705,11 +1705,13 @@ int ci_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_BONAIRE:
io_mc_regs = (u32 *)&bonaire_io_mc_regs;
--
1.9.3
--
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