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scsi: ufs: ufs-mediatek: Fix error checking in ufs_mtk_init_va09_pwr_ctrl()

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commit 3ba880a12df5aa4488c18281701b5b1bc3d4531a upstream.

The function regulator_get() returns an error pointer. Use IS_ERR() to
validate the return value.

Link: https://lore.kernel.org/r/20211222070930.9449-1-linmq006@gmail.com
Fixes: cf137b3ea49a ("scsi: ufs-mediatek: Support VA09 regulator operations")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Miaoqian Lin 2021-12-22 07:09:30 +00:00 committed by Greg Kroah-Hartman
parent 46f6dda2a6
commit 0dc4db8abc
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/ufs/ufs-mediatek.c
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@ -501,7 +501,7 @@ static void ufs_mtk_init_va09_pwr_ctrl(struct ufs_hba *hba)
struct ufs_mtk_host *host = ufshcd_get_variant(hba);
host->reg_va09 = regulator_get(hba->dev, "va09");
if (!host->reg_va09)
if (IS_ERR(host->reg_va09))
dev_info(hba->dev, "failed to get va09");
else
host->caps |= UFS_MTK_CAP_VA09_PWR_CTRL;