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| author | Veera Sundaram Sankaran <veeras@codeaurora.org> | 2014-11-07 16:30:39 -0800 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 20:36:09 -0700 |
| commit | cec2b17af6efb8fe34b28d5d5293b0d47e0269af (patch) | |
| tree | 38f6fd22c25235ad3388ba5337c643e78ce5ae46 /drivers/video/fbdev | |
| parent | 21ce99e154b976279c5e4e60241aed65a426aa17 (diff) | |
msm: mdss: fix possible null dereferencing in interface writeback
Added null check to avoid possible null pointer dereferencing.
Change-Id: Iedafe6e308b7b4a1d43efa7c37a26afd16fa1989
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>
Diffstat (limited to 'drivers/video/fbdev')
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_mdp_intf_writeback.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/video/fbdev/msm/mdss_mdp_intf_writeback.c b/drivers/video/fbdev/msm/mdss_mdp_intf_writeback.c index e43e985af385..c2d8e4fa335b 100644 --- a/drivers/video/fbdev/msm/mdss_mdp_intf_writeback.c +++ b/drivers/video/fbdev/msm/mdss_mdp_intf_writeback.c @@ -294,7 +294,7 @@ static int mdss_mdp_writeback_format_setup(struct mdss_mdp_writeback_ctx *ctx, } if (ctx->type == MDSS_MDP_WRITEBACK_TYPE_ROTATOR && - mdata->has_rot_dwnscale) { + mdata && mdata->has_rot_dwnscale) { dnsc_factor = (ctx->dnsc_factor_h) | (ctx->dnsc_factor_w << 16); mdp_wb_write(ctx, MDSS_MDP_REG_WB_ROTATOR_PIPE_DOWNSCALER, dnsc_factor); |