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Subject[PATCH v2 8/8] scsi: ufs-mediatek: Fix invalid access to vccqx
Date
From: Alice Chao <alice.chao@mediatek.com>

NULL pointer access issue was found for the regulator released
by ufs_mtk_vreg_fix_vccq(). Simply fix this issue by clearing
the released vreg pointer in ufs_hba struct.

Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Alice Chao <alice.chao@mediatek.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
---
drivers/ufs/host/ufs-mediatek.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c
index 125d64e097f2..2404df9c3a01 100755
--- a/drivers/ufs/host/ufs-mediatek.c
+++ b/drivers/ufs/host/ufs-mediatek.c
@@ -758,6 +758,7 @@ static void ufs_mtk_vreg_fix_vccqx(struct ufs_hba *hba)
regulator_disable((*vreg_off)->reg);
devm_kfree(hba->dev, (*vreg_off)->name);
devm_kfree(hba->dev, *vreg_off);
+ *vreg_off = NULL;
}
}

--
2.18.0
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