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authorKashyap, Desai <kashyap.desai@lsi.com>2010-04-05 14:21:07 +0530
committerJames Bottomley <James.Bottomley@suse.de>2010-04-11 13:42:46 -0500
commit66a679365780a8d775b1ed03e2576007f7100121 (patch)
tree9e9c4d4341f77fb5692cad739e0392ebcea6ce66 /drivers/scsi/mpt2sas
parentef7c80c1f18f2c5eea2dabd214f12e0c93ac29cf (diff)
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[SCSI] mpt2sas: Check for NULL pointer before free_pages is added.
Added check before free_pages just to make sure ioc->scsi_lookup is not NULL. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/mpt2sas')
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_base.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index b04ccad..b830d61 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -1919,7 +1919,10 @@ _base_release_memory_pools(struct MPT2SAS_ADAPTER *ioc)
ioc->config_page, ioc->config_page_dma);
}
- free_pages((ulong)ioc->scsi_lookup, ioc->scsi_lookup_pages);
+ if (ioc->scsi_lookup) {
+ free_pages((ulong)ioc->scsi_lookup, ioc->scsi_lookup_pages);
+ ioc->scsi_lookup = NULL;
+ }
kfree(ioc->hpr_lookup);
kfree(ioc->internal_lookup);
}