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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>
This commit is contained in:
Kashyap, Desai 2010-04-05 14:21:07 +05:30 committed by James Bottomley
parent ef7c80c1f1
commit 66a6793657
1 changed files with 4 additions and 1 deletions
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5
drivers/scsi/mpt2sas/mpt2sas_base.c
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@ -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);
}