From 22ccb2a146f92b81cc5731db8c1ee2316cca3576 Mon Sep 17 00:00:00 2001 From: Syam Sidhardhan Date: Mon, 25 Feb 2013 04:01:48 +0530 Subject: [PATCH] gma500: medfield: Fix possible NULL pointer dereference The use of pointer sender should be after the NULL check. Signed-off-by: Syam Sidhardhan Signed-off-by: Patrik Jakobsson --- drivers/gpu/drm/gma500/mdfld_dsi_output.c | 7 +++++-- 1 file 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); -- 2.20.1