[v1] mpt3sas: Fix double free warnings

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Fix below warnings from Smatch static analyser:

drivers/scsi/mpt3sas/mpt3sas_base.c:5256 _base_allocate_memory_pools()
warn: 'ioc->hpr_lookup' double freed

drivers/scsi/mpt3sas/mpt3sas_base.c:5256 _base_allocate_memory_pools()
warn: 'ioc->internal_lookup' double freed

Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@xxxxxxxxxxxx>
---
v1 Change:
Removed checks before kfree().

 drivers/scsi/mpt3sas/mpt3sas_base.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 7fa3bdb..dc260fe 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -4899,7 +4899,9 @@ _base_release_memory_pools(struct MPT3SAS_ADAPTER *ioc)
 	}
 
 	kfree(ioc->hpr_lookup);
+	ioc->hpr_lookup = NULL;
 	kfree(ioc->internal_lookup);
+	ioc->internal_lookup = NULL;
 	if (ioc->chain_lookup) {
 		for (i = 0; i < ioc->scsiio_depth; i++) {
 			for (j = ioc->chains_per_prp_buffer;
-- 
2.18.4




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