[PATCH 1/2] drm/simpledrm: Do not upcast in release helpers

[Thomas Zimmermann]

The res pointer passed to simpledrm_device_release_clocks() and
simpledrm_device_release_regulators() points to an instance of
struct simpledrm_device. No need to upcast from struct drm_device.
The upcast is harmless, as DRM device is the first field in struct
simpledrm_device.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Fixes: 11e8f5fd223b ("drm: Add simpledrm driver")
Cc: <stable at vger.kernel.org> # v5.14+
---
 drivers/gpu/drm/sysfb/simpledrm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/sysfb/simpledrm.c b/drivers/gpu/drm/sysfb/simpledrm.c
index cfb1fe07704d7..78672422bcada 100644
--- a/drivers/gpu/drm/sysfb/simpledrm.c
+++ b/drivers/gpu/drm/sysfb/simpledrm.c
@@ -275,7 +275,7 @@ static struct simpledrm_device *simpledrm_device_of_dev(struct drm_device *dev)
 
 static void simpledrm_device_release_clocks(void *res)
 {
-	struct simpledrm_device *sdev = simpledrm_device_of_dev(res);
+	struct simpledrm_device *sdev = res;
 	unsigned int i;
 
 	for (i = 0; i < sdev->clk_count; ++i) {
@@ -373,7 +373,7 @@ static int simpledrm_device_init_clocks(struct simpledrm_device *sdev)
 
 static void simpledrm_device_release_regulators(void *res)
 {
-	struct simpledrm_device *sdev = simpledrm_device_of_dev(res);
+	struct simpledrm_device *sdev = res;
 	unsigned int i;
 
 	for (i = 0; i < sdev->regulator_count; ++i) {
-- 
2.49.0