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| author | Ben Skeggs <bskeggs@redhat.com> | 2014-09-08 10:33:32 +1000 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2014-11-13 19:02:24 +0100 |
| commit | 5a14c978fed450baabf93cec388743b1de8b4b41 (patch) | |
| tree | 0c8d39ee6ab387be1e99fd32886c98b6af6973b2 /drivers/gpu | |
| parent | 3055e72f042a7e5566f02ca2be609426ba6f6efa (diff) | |
| download | lwn-5a14c978fed450baabf93cec388743b1de8b4b41.tar.gz lwn-5a14c978fed450baabf93cec388743b1de8b4b41.zip | |
drm/nouveau/bios: memset dcb struct to zero before parsing
commit 595d373f1e9c9ce0fc946457fdb488e8a58972cd upstream.
Fixes type/mask calculation being based on uninitialised data for VGA
outputs.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c b/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c index 2d9b9d7a7992..f3edd2841f2d 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c @@ -124,6 +124,7 @@ dcb_outp_parse(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *len, struct dcb_output *outp) { u16 dcb = dcb_outp(bios, idx, ver, len); + memset(outp, 0x00, sizeof(*outp)); if (dcb) { if (*ver >= 0x20) { u32 conn = nv_ro32(bios, dcb + 0x00); |