drm/nv40/therm: reserve negative temperatures for errors

Signed-off-by: Martin Peres <martin.peres@labri.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
git-mirror · Mar 18, 2013 · 76c0295 · 76c0295
1 parent ad40d73
commit 76c0295
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/nv40.c b/drivers/gpu/drm/nouveau/core/subdev/therm/nv40.c
@@ -102,6 +102,10 @@ nv40_temp_get(struct nouveau_therm *therm)
 	core_temp = core_temp + sensor->offset_num / sensor->offset_den;
 	core_temp = core_temp + sensor->offset_constant - 8;
 
+	/* reserve negative temperatures for errors */
+	if (core_temp < 0)
+		core_temp = 0;
+
 	return core_temp;
 }