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drm/nouveau/bios/pll: prevent oops when limits table can't be parsed
author
Ben Skeggs
<bskeggs@redhat.com>
Tue, 19 Apr 2016 00:07:04 +0000
(10:07 +1000)
committer
Ben Skeggs
<bskeggs@redhat.com>
Fri, 20 May 2016 04:43:04 +0000
(14:43 +1000)
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
drivers/gpu/drm/nouveau/nvkm/subdev/bios/pll.c
patch
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diff --git
a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/pll.c
b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/pll.c
index
125ec2e
..
4cd3d65
100644
(file)
--- 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;