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drm/radeon/kms: suppress a build warning (unused variable)

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At least 'make CONFIG_DEBUG_SECTION_MISMATCH=y' causes
drivers/gpu/drm/radeon/atombios_crtc.c: In function 'atombios_crtc_set_pll':
drivers/gpu/drm/radeon/atombios_crtc.c:684: warning: 'pll' may be used uninitialized in this function
which has the looks of a falso positive.

Add a default: case so that gcc rests assured that all possible pll_id's are covered.
Keep the present cases that fall through to the default one for self-documentation.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Stefan Richter 2010-05-26 10:27:44 +10:00 committed by Dave Airlie
parent f49d273df9
commit 921d98b582
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/radeon/atombios_crtc.c
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@ -707,6 +707,7 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode
break;
case ATOM_DCPLL:
case ATOM_PPLL_INVALID:
default:
pll = &rdev->clock.dcpll;
break;
}