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scsi: ufs: core: Remove the ufshcd_hba_exit() call from ufshcd_async_scan()

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[ Upstream commit ee36710912 ]

Calling ufshcd_hba_exit() from a function that is called asynchronously
from ufshcd_init() is wrong because this triggers multiple race
conditions. Instead of calling ufshcd_hba_exit(), log an error message.

Reported-by: Daniel Mentz <danielmentz@google.com>
Fixes: 1d337ec2f3 ("ufs: improve init sequence")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20231218225229.2542156-3-bvanassche@acm.org
Reviewed-by: Can Guo <quic_cang@quicinc.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Bart Van Assche 2023-12-18 14:52:15 -08:00 committed by Greg Kroah-Hartman
parent 226554bd27
commit 72a3395543
1 changed files with 2 additions and 5 deletions
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7
drivers/scsi/ufs/ufshcd.c
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@ -8020,12 +8020,9 @@ static void ufshcd_async_scan(void *data, async_cookie_t cookie)
out:
pm_runtime_put_sync(hba->dev);
/*
* If we failed to initialize the device or the device is not
* present, turn off the power/clocks etc.
*/
if (ret)
ufshcd_hba_exit(hba);
dev_err(hba->dev, "%s failed: %d\n", __func__, ret);
}
static const struct attribute_group *ufshcd_driver_groups[] = {