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

[Stefan Richter]

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 at s5r6.in-berlin.de>
---
 drivers/gpu/drm/radeon/atombios_crtc.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 03dd6c4..f3f2827 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -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;
 	}
-- 
Stefan Richter
-=====-==-=- -=-= ==--=
http://arcgraph.de/sr/