[PATCH 1/2] mpt3sas: Deallocate resources before trying reallocation of the same in _base_allocate_memory_pools()

From: Chaitra P B
Date: Wed Feb 17 2016 - 06:26:10 EST


Deallocates resources before reallocating of the same in retry_allocation
path of _base_allocate_memory_pools()

Signed-off-by: Chaitra P B <chaitra.basappa@xxxxxxxxxxxx>
Suganath prabu Subramani <suganath-prabu.subramani@xxxxxxxxxxxxx>
---
drivers/scsi/mpt3sas/mpt3sas_base.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index f59495b..60c2e86 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -3124,8 +3124,10 @@ _base_release_memory_pools(struct MPT3SAS_ADAPTER *ioc)
free_pages((ulong)ioc->scsi_lookup, ioc->scsi_lookup_pages);
ioc->scsi_lookup = NULL;
}
- kfree(ioc->hpr_lookup);
- kfree(ioc->internal_lookup);
+ if (ioc->hpr_lookup)
+ kfree(ioc->hpr_lookup);
+ if (ioc->internal_lookup)
+ kfree(ioc->internal_lookup);
if (ioc->chain_lookup) {
for (i = 0; i < ioc->chain_depth; i++) {
if (ioc->chain_lookup[i].chain_buffer)
@@ -3360,6 +3362,7 @@ _base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
goto out;
retry_sz += 64;
ioc->hba_queue_depth = max_request_credit - retry_sz;
+ _base_release_memory_pools(ioc);
goto retry_allocation;
}

--
1.8.3.1