diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2016-04-19 10:07:04 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2016-05-20 14:43:04 +1000 |
| commit | 2781c928b1b3d5d56d72b4955e19c0d963e2c22e (patch) | |
| tree | 44600ab10107e3d4acef37f0f53c4e0aa35fb1a9 | |
| parent | d07a97e939cd1e257d833758c43dd5b7ffd7ba44 (diff) | |
drm/nouveau/bios/pll: prevent oops when limits table can't be parsed
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/bios/pll.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/pll.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/pll.c index 125ec2ed6c2e..4cd3d6502e20 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/pll.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/pll.c @@ -156,7 +156,7 @@ pll_map_reg(struct nvkm_bios *bios, u32 reg, u32 *type, u8 *ver, u8 *len) } map = pll_map(bios); - while (map->reg) { + while (map && map->reg) { if (map->reg == reg && *ver >= 0x20) { u16 addr = (data += hdr); *type = map->type; @@ -198,7 +198,7 @@ pll_map_type(struct nvkm_bios *bios, u8 type, u32 *reg, u8 *ver, u8 *len) } map = pll_map(bios); - while (map->reg) { + while (map && map->reg) { if (map->type == type && *ver >= 0x20) { u16 addr = (data += hdr); *reg = map->reg; |