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Commit 4eb78fc2 authored by Asutosh Das's avatar Asutosh Das
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scsi: ufs-qti: Check for valid vcc before accessing 



This patch fixes a NULL pointer dereference by checking
if vccq & vccq2 are valid before dereferencing it.

Change-Id: Ieb5aefab77428adbbbbf892f2be1a9942d7c3851
Signed-off-by: default avatarAsutosh Das <asutoshd@codeaurora.org>
parent 90ae165d

drivers/scsi/ufs/ufshcd-qti.c

+2 −2
Original line number Diff line number Diff line
@@ -8323,9 +8323,9 @@ static int ufshcd_probe_hba(struct ufs_hba *hba) 
	 * during system suspend events. This will cause the UFS

	 * device to re-initialize upon system resume events.

	 */

	if ((hba->dev_info.w_spec_version >= 0x300 &&

	if ((hba->dev_info.w_spec_version >= 0x300 && hba->vreg_info.vccq &&

		hba->vreg_info.vccq->sys_suspend_pwr_off) ||

		(hba->dev_info.w_spec_version < 0x300 &&

		(hba->dev_info.w_spec_version < 0x300 && hba->vreg_info.vccq2 &&

		hba->vreg_info.vccq2->sys_suspend_pwr_off))

		hba->spm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state(

				UFS_POWERDOWN_PWR_MODE,