diff options
| author | Ranjan Kumar | 2023-10-20 16:28:49 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-11-28 17:07:07 +0000 |
| commit | bb5e307366ef3ed67339d0ce8b39e4f9bdd94cf6 (patch) | |
| tree | bfb1ba31ab4a36c0c807ce5375d23699792c427f | |
| parent | dd56d432445ed17ce67e5f1a810c45cbb934b239 (diff) | |
scsi: mpt3sas: Fix loop logic
commit 3c978492c333f0c08248a8d51cecbe5eb5f617c9 upstream.
The retry loop continues to iterate until the count reaches 30, even after
receiving the correct value. Exit loop when a non-zero value is read.
Fixes: 4ca10f3e3174 ("scsi: mpt3sas: Perform additional retries if doorbell read returns 0")
Cc: stable@vger.kernel.org
Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20231020105849.6350-1-ranjan.kumar@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_base.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index 2093888f154e..809be43f440d 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -224,8 +224,8 @@ _base_readl_ext_retry(const volatile void __iomem *addr) for (i = 0 ; i < 30 ; i++) { ret_val = readl(addr); - if (ret_val == 0) - continue; + if (ret_val != 0) + break; } return ret_val; |