From: Pan Bian bianpan2016@163.com
[ Upstream commit 3fe3d2428b62822b7b030577cd612790bdd8c941 ]
The variable init_fw_cb is released twice, resulting in a double free bug. The call to the function dma_free_coherent() before goto is removed to get rid of potential double free.
Fixes: 2a49a78ed3c8 ("[SCSI] qla4xxx: added IPv6 support.") Link: https://lore.kernel.org/r/1572945927-27796-1-git-send-email-bianpan2016@163.... Signed-off-by: Pan Bian bianpan2016@163.com Acked-by: Manish Rangankar mrangankar@marvell.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/qla4xxx/ql4_mbx.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c index dac9a7013208..02636b4785c5 100644 --- a/drivers/scsi/qla4xxx/ql4_mbx.c +++ b/drivers/scsi/qla4xxx/ql4_mbx.c @@ -640,9 +640,6 @@ int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)
if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) != QLA_SUCCESS) { - dma_free_coherent(&ha->pdev->dev, - sizeof(struct addr_ctrl_blk), - init_fw_cb, init_fw_cb_dma); goto exit_init_fw_cb; }