diff options
| author | Dan Carpenter <error27@gmail.com> | 2010-04-27 23:11:04 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-04-28 10:41:54 +0200 |
| commit | 0031c41be5c529f8329e327b63cde92ba1284842 (patch) | |
| tree | 753f7f1ba1a1886816f40740d7a4d96f9830ecb6 | |
| parent | gpu: vga_switcheroo, fix lock imbalance (diff) | |
| download | linux-0031c41be5c529f8329e327b63cde92ba1284842.tar.xz linux-0031c41be5c529f8329e327b63cde92ba1284842.zip | |
drivers/gpu/drm/radeon/radeon_atombios.c: range check issues
This change makes the array larger, "MAX_SUPPORTED_TV_TIMING_V1_2" is 3
and the original size "MAX_SUPPORTED_TV_TIMING" is 2.
Also there were checks that were off by one.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_atombios.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/atombios.h b/drivers/gpu/drm/radeon/atombios.h index 6732b5dd8ff4..27e2c715be11 100644 --- a/drivers/gpu/drm/radeon/atombios.h +++ b/drivers/gpu/drm/radeon/atombios.h @@ -2912,7 +2912,7 @@ typedef struct _ATOM_ANALOG_TV_INFO_V1_2 UCHAR ucTV_BootUpDefaultStandard; UCHAR ucExt_TV_ASIC_ID; UCHAR ucExt_TV_ASIC_SlaveAddr; - ATOM_DTD_FORMAT aModeTimings[MAX_SUPPORTED_TV_TIMING]; + ATOM_DTD_FORMAT aModeTimings[MAX_SUPPORTED_TV_TIMING_V1_2]; }ATOM_ANALOG_TV_INFO_V1_2; typedef struct _ATOM_DPCD_INFO diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 5673665ff216..9916d825401c 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -1264,7 +1264,7 @@ bool radeon_atom_get_tv_timings(struct radeon_device *rdev, int index, switch (crev) { case 1: tv_info = (ATOM_ANALOG_TV_INFO *)(mode_info->atom_context->bios + data_offset); - if (index > MAX_SUPPORTED_TV_TIMING) + if (index >= MAX_SUPPORTED_TV_TIMING) return false; mode->crtc_htotal = le16_to_cpu(tv_info->aModeTimings[index].usCRTC_H_Total); @@ -1302,7 +1302,7 @@ bool radeon_atom_get_tv_timings(struct radeon_device *rdev, int index, break; case 2: tv_info_v1_2 = (ATOM_ANALOG_TV_INFO_V1_2 *)(mode_info->atom_context->bios + data_offset); - if (index > MAX_SUPPORTED_TV_TIMING_V1_2) + if (index >= MAX_SUPPORTED_TV_TIMING_V1_2) return false; dtd_timings = &tv_info_v1_2->aModeTimings[index]; |