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scsi: ufs-qcom: Fix null pointer dereference

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Validate the existence of pm qos groups before accessing them,
to fix null pointer dereference.

Change-Id: Iddb96afac87cf3e7a1cc48f04b3c550e81bdae4b
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
This commit is contained in:
Venkat Gopalakrishnan 2016-06-14 16:02:24 -07:00 • committed by Kyle Yan
parent 9e6175fca8
commit a8de60e7e7
1 changed files with 3 additions and 0 deletions
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3
drivers/scsi/ufs/ufs-qcom.c
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@ -1829,6 +1829,9 @@ static void ufs_qcom_pm_qos_suspend(struct ufs_qcom_host *host)
{
int i;
if (!host->pm_qos.groups)
return;
for (i = 0; i < host->pm_qos.num_groups; i++)
flush_work(&host->pm_qos.groups[i].unvote_work);
}