evie/android_kernel_oneplus_msm8998
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msm: mdss: Fix possible null dereferencing

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Fixed null dereferencing in dsi and hdmi

Change-Id: I6401a1e0c1bbfc50a4e31615716e42ad8b666d46
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>
This commit is contained in:
Veera Sundaram Sankaran 2014-10-02 11:13:50 -07:00 • committed by David Keitel
parent 19a0721e64
commit 124d54455f
2 changed files with 5 additions and 3 deletions
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2
drivers/video/fbdev/msm/mdss_dsi.c
View file

@ -1819,7 +1819,7 @@ int dsi_panel_device_register(struct device_node *pan_node,
if (!res || res->start == 0) {
pr_err("%s:%d unable to get the MDSS irq resources\n",
__func__, __LINE__);
rc = -ENODEV;
return -ENODEV;
}
rc = mdss_dsi_irq_init(&ctrl_pdev->dev, res->start, ctrl_pdata);
if (rc) {

6
drivers/video/fbdev/msm/mdss_hdmi_tx.c
View file

@ -494,12 +494,13 @@ static inline u32 hdmi_tx_is_dvi_mode(struct hdmi_tx_ctrl *hdmi_ctrl)
static inline void hdmi_tx_send_cable_notification(
struct hdmi_tx_ctrl *hdmi_ctrl, int val)
{
int state = hdmi_ctrl->sdev.state;
int state = 0;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
state = hdmi_ctrl->sdev.state;
switch_set_state(&hdmi_ctrl->sdev, val);
@ -515,12 +516,13 @@ static inline void hdmi_tx_send_cable_notification(
static inline void hdmi_tx_set_audio_switch_node(
struct hdmi_tx_ctrl *hdmi_ctrl, int val)
{
int state = hdmi_ctrl->audio_sdev.state;
int state = 0;
if (!hdmi_ctrl) {
DEV_ERR("%s: invalid input\n", __func__);
return;
}
state = hdmi_ctrl->audio_sdev.state;
if (!hdmi_tx_is_dvi_mode(hdmi_ctrl) &&
hdmi_tx_is_cea_format(hdmi_ctrl->video_resolution)) {