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authorSyam Sidhardhan <syamsidhardh@gmail.com>2013-02-25 04:01:48 +0530
committerPatrik Jakobsson <patrik.r.jakobsson@gmail.com>2013-03-13 22:37:32 +0100
commit22ccb2a146f92b81cc5731db8c1ee2316cca3576 (patch)
tree0aabe6511bcbcfa40c9dd357181798bdfbe7b709 /drivers/gpu/drm/gma500/mdfld_dsi_output.c
parentbc6a541941df6e05b0c53133537ce4cf31336c3f (diff)
gma500: medfield: Fix possible NULL pointer dereference
The use of pointer sender should be after the NULL check. Signed-off-by: Syam Sidhardhan <s.syam@samsung.com> Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/gma500/mdfld_dsi_output.c')
-rw-r--r--drivers/gpu/drm/gma500/mdfld_dsi_output.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/gma500/mdfld_dsi_output.c b/drivers/gpu/drm/gma500/mdfld_dsi_output.c
index 2d4ab48f07a2..3abf8315f57c 100644
--- a/drivers/gpu/drm/gma500/mdfld_dsi_output.c
+++ b/drivers/gpu/drm/gma500/mdfld_dsi_output.c
@@ -92,8 +92,8 @@ void mdfld_dsi_brightness_init(struct mdfld_dsi_config *dsi_config, int pipe)
{
struct mdfld_dsi_pkg_sender *sender =
mdfld_dsi_get_pkg_sender(dsi_config);
- struct drm_device *dev = sender->dev;
- struct drm_psb_private *dev_priv = dev->dev_private;
+ struct drm_device *dev;
+ struct drm_psb_private *dev_priv;
u32 gen_ctrl_val;
if (!sender) {
@@ -101,6 +101,9 @@ void mdfld_dsi_brightness_init(struct mdfld_dsi_config *dsi_config, int pipe)
return;
}
+ dev = sender->dev;
+ dev_priv = dev->dev_private;
+
/* Set default display backlight value to 85% (0xd8)*/
mdfld_dsi_send_mcs_short(sender, write_display_brightness, 0xd8, 1,
true);