[PATCH] mpt3sas: a correction in unmap_resources

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It might happen that we try to free an already freed pointer.

Tomas

Reported-by: Maurizio Lombardi <mlombard@xxxxxxxxxx>
Signed-off-by: Tomas Henzl <thenzl@xxxxxxxxxx>
---
 drivers/scsi/mpt3sas/mpt3sas_base.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index d4f1dcdb83..3b09b3d09f 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -1827,8 +1827,10 @@ mpt3sas_base_unmap_resources(struct MPT3SAS_ADAPTER *ioc)
 	_base_free_irq(ioc);
 	_base_disable_msix(ioc);
 
-	if (ioc->msix96_vector)
+	if (ioc->msix96_vector) {
 		kfree(ioc->replyPostRegisterIndex);
+		ioc->replyPostRegisterIndex = NULL;
+	}
 
 	if (ioc->chip_phys) {
 		iounmap(ioc->chip);
-- 
2.4.3

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