evie/android_kernel_oneplus_msm8998
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msm: mdss: Validate destination scaler based on count

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If destination scaler count value is 0, don't parse
destination scaler structure in validate IOCTL.

Change-Id: Ie65b7b0b304108990406e25db55ee841f9316e17
Signed-off-by: Jayant Shekhar <jshekhar@codeaurora.org>
This commit is contained in:
Jayant Shekhar 2017-03-23 15:46:50 +05:30
parent 630218f710
commit 7dfdf9a420
1 changed files with 4 additions and 3 deletions
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7
drivers/video/fbdev/msm/mdss_mdp_layer.c
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@ -2595,9 +2595,10 @@ static int __validate_layers(struct msm_fb_data_type *mfd,
}
ds_data = commit->dest_scaler;
if (test_bit(MDSS_CAPS_DEST_SCALER, mdata->mdss_caps_map) &&
ds_data && (ds_data->flags & MDP_DESTSCALER_ENABLE) &&
commit->dest_scaler_cnt) {
if (test_bit(MDSS_CAPS_DEST_SCALER, mdata->mdss_caps_map)
&& ds_data && commit->dest_scaler_cnt
&& (ds_data->flags & MDP_DESTSCALER_ENABLE)) {
/*
* Find out which DS block to use based on DS commit info