gma500: Re-order checks and dereferences in psb_intel_lvds

gma500: Re-order checks and dereferences in psb_intel_lvds

Dan Carpenter reports:

Smatch complains about 6a7afe3acc4b "gma500: continue abstracting
platform specific code"

drivers/staging/gma500/psb_intel_lvds.c +579 psb_intel_lvds_set_property(7)
	warn: variable dereferenced before check 'encoder'

	--- a/drivers/staging/gma500/psb_intel_lvds.c
	+++ b/drivers/staging/gma500/psb_intel_lvds.c
	@@ -575,11 +575,12 @@ int psb_intel_lvds_set_property(struct drm_connector *connector,
					       struct drm_property *property,
					       uint64_t value)
	 {
	-       struct drm_encoder *pEncoder = connector->encoder;
	+       struct drm_encoder *encoder = connector->encoder;
	+       struct drm_psb_private *dev_priv = encoder->dev->dev_private;
						   ^^^^^^^^^^^^
dereference encoder here.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>