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

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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: cf137b3ea4 ("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>
(cherry picked from commit 3ba880a12d git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I9b6d2fbb9d1d795f30e7873837b59dbf76569d1b
Signed-off-by: Bart Van Assche <bvanassche@google.com>
This commit is contained in:
Miaoqian Lin
2021-12-22 07:09:30 +00:00
committed by Todd Kjos
parent 1fc4aef3d5
commit aeedc78679
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/ufs/ufs-mediatek.c
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@@ -557,7 +557,7 @@ 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;