[ Upstream commit 63a06181d7ce169d09843645c50fea1901bc9f0a ]
devm_reset_control_get could fail, so the fix checks its return value and passes the error code upstream in case it fails.
Signed-off-by: Kangjie Lu kjlu@umn.edu Acked-by: Avri Altman avri.altman@wdc.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/ufs/ufs-hisi.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/scsi/ufs/ufs-hisi.c b/drivers/scsi/ufs/ufs-hisi.c index 452e19f8fb470..c2cee73a8560d 100644 --- a/drivers/scsi/ufs/ufs-hisi.c +++ b/drivers/scsi/ufs/ufs-hisi.c @@ -544,6 +544,10 @@ static int ufs_hisi_init_common(struct ufs_hba *hba) ufshcd_set_variant(hba, host);
host->rst = devm_reset_control_get(dev, "rst"); + if (IS_ERR(host->rst)) { + dev_err(dev, "%s: failed to get reset control\n", __func__); + return PTR_ERR(host->rst); + }
ufs_hisi_set_pm_lvl(hba);