scsi: qla2xxx: Fix a recently introduced memory leak

qla2x00_probe_one() allocates IRQs before it initializes rsp_q_map so
IRQs must be freed even if rsp_q_map allocation did not occur.  This was
detected by kmemleak.

Fixes: 4fa183455988 ("scsi: qla2xxx: Utilize pci_alloc_irq_vectors/pci_free_irq_vectors calls")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Michael Hernandez <michael.hernandez@cavium.com>
Cc: Himanshu Madhani <himanshu.madhani@cavium.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: <stable@vger.kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-By: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 5815403d1d65..3116bf390b06 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -3237,7 +3237,7 @@ qla2x00_free_irqs(scsi_qla_host_t *vha)
          * from a probe failure context.
          */
         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
-                return;
+                goto free_irqs;
         rsp = ha->rsp_q_map[0];
 
         if (ha->flags.msix_enabled) {
@@ -3257,6 +3257,7 @@ qla2x00_free_irqs(scsi_qla_host_t *vha)
                 free_irq(pci_irq_vector(ha->pdev, 0), rsp);
         }
 
+free_irqs:
         pci_free_irq_vectors(ha->pdev);
 }