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drm/radeon/kms/atom: make sure tables are valid (v2)

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Check that atom cmd and data tables are valid
before using them.

(v2)
- fix some whitespace errors noticed by Rafał Miłecki
- check a few more cases

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher
2010-03-18 01:04:01 -04:00
committed by Dave Airlie
parent c1bcad9d16
commit a084e6ee6e
7 changed files with 262 additions and 232 deletions
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15
drivers/gpu/drm/radeon/atombios_crtc.c
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@@ -541,8 +541,9 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
int index;
index = GetIndexIntoMasterTable(COMMAND, AdjustDisplayPll);
atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
&crev);
if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
&crev))
return adjusted_clock;
memset(&args, 0, sizeof(args));
@@ -630,8 +631,9 @@ static void atombios_crtc_set_dcpll(struct drm_crtc *crtc)
memset(&args, 0, sizeof(args));
index = GetIndexIntoMasterTable(COMMAND, SetPixelClock);
atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
&crev);
if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
&crev))
return;
switch (frev) {
case 1:
@@ -705,8 +707,9 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode
&ref_div, &post_div);
index = GetIndexIntoMasterTable(COMMAND, SetPixelClock);
atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
&crev);
if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
&crev))
return;
switch (frev) {
case 1: