[PATCH 1/5] drm/gma500: fix error path in gma_intel_setup_gmbus()

[Rasmus Villemoes]

The current code fails to call i2c_del_adapter on
dev_prev->gmbus[0].adapter, and if the for loop above failed already
at i==0, all hell breaks loose when we do the loop body for
i = -1,-2,...

Signed-off-by: Rasmus Villemoes <linux at rasmusvillemoes.dk>
---
 drivers/gpu/drm/gma500/intel_gmbus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/gma500/intel_gmbus.c 
b/drivers/gpu/drm/gma500/intel_gmbus.c
index 566d330aaeea..e7e22187c539 100644
--- a/drivers/gpu/drm/gma500/intel_gmbus.c
+++ b/drivers/gpu/drm/gma500/intel_gmbus.c
@@ -436,7 +436,7 @@ int gma_intel_setup_gmbus(struct drm_device *dev)
        return 0;

 err:
-       while (--i) {
+       while (i--) {
                struct intel_gmbus *bus = &dev_priv->gmbus[i];
                i2c_del_adapter(&bus->adapter);
        }
-- 
2.1.4