From: Alexey Khoroshilov Date: Wed, 5 Oct 2011 00:42:39 +0000 (+1100) Subject: drivers/scsi/mpt2sas/mpt2sas_base.c: fix mismatch in mpt2sas_base_hard_reset_handler... X-Git-Tag: next-20111007~1^2~236 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0aa541c7d854a6df530ec2f88c54e781103ce1c6;p=karo-tx-linux.git drivers/scsi/mpt2sas/mpt2sas_base.c: fix mismatch in mpt2sas_base_hard_reset_handler() mutex lock-unlock If ioc->pci_error_recovery is set, goto out in mpt2sas_base_hard_reset_handler() leads to unlock unheld ioc->reset_in_progress_mutex. Fix the issue by jumping afer mutex_unlock() call. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Cc: Kashyap Desai Signed-off-by: Andrew Morton --- diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c index 81209ca87274..d700a2c477e1 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.c +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c @@ -4358,7 +4358,7 @@ mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag, printk(MPT2SAS_ERR_FMT "%s: pci error recovery reset\n", ioc->name, __func__); r = 0; - goto out; + goto out_unlocked; } if (mpt2sas_fwfault_debug) @@ -4414,6 +4414,7 @@ mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag, spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); mutex_unlock(&ioc->reset_in_progress_mutex); + out_unlocked: dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: exit\n", ioc->name, __func__)); return r;