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Commit 6bd4e1e4 authored by Kashyap, Desai's avatar Kashyap, Desai Committed by James Bottomley
Browse files

[SCSI] mpt2sas: fix infinite loop inside config request 



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: default avatarKashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent be9e8cd7

drivers/scsi/mpt2sas/mpt2sas_config.c

+6 −0
Original line number Diff line number Diff line
@@ -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) {