diff options
| author | Kashyap, Desai <kashyap.desai@lsi.com> | 2009-08-07 19:37:14 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-09-08 20:33:43 -0700 |
| commit | 8b5e2bf4efa0aff2a427ab7eef2ee39de7501233 (patch) | |
| tree | 7eec2953090bcbfb720ada024b92ab659229f135 /drivers | |
| parent | a58c05338b9173b821d6d47b564e02431df4eb54 (diff) | |
SCSI: mpt2sas: fix infinite loop inside config request
commit 6bd4e1e4d6023f4da069fd68729c502cc4e6dfd0 upstream.
This restriction is introduced just to avoid loop of
config_request. Retry must be limited so we have restricted
config request to maximum 2 times.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_config.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_config.c b/drivers/scsi/mpt2sas/mpt2sas_config.c index 58cfb97846f7..1c6658c60239 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_config.c +++ b/drivers/scsi/mpt2sas/mpt2sas_config.c @@ -247,6 +247,12 @@ _config_request(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigRequest_t retry_count = 0; retry_config: + if (retry_count) { + if (retry_count > 2) /* attempt only 2 retries */ + return -EFAULT; + printk(MPT2SAS_INFO_FMT "%s: attempting retry (%d)\n", + ioc->name, __func__, retry_count); + } wait_state_count = 0; ioc_state = mpt2sas_base_get_iocstate(ioc, 1); while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { |