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[3/8] qla2xxx: Fix warning in qla2x00_async_iocb_timeout()

Message ID 20180116044653.20696-4-himanshu.madhani@cavium.com (mailing list archive)
State Accepted
Headers show

Commit Message

Madhani, Himanshu Jan. 16, 2018, 4:46 a.m. UTC 
This patch fixes following Smatch warning

drivers/scsi/qla2xxx/qla_init.c:130 qla2x00_async_iocb_timeout() error: we previously assumed 'fcport' could be null (see line 107)

Fixes: 5c25d451163c ("scsi: qla2xxx: Fix NULL pointer access for fcport structure")
Reported by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
---
 drivers/scsi/qla2xxx/qla_init.c | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 9c08222e4c8b..08ad1a60cb0d 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -117,6 +117,8 @@  qla2x00_async_iocb_timeout(void *data)
 
 	switch (sp->type) {
 	case SRB_LOGIN_CMD:
+		if (!fcport)
+			break;
 		/* Retry as needed. */
 		lio->u.logio.data[0] = MBS_COMMAND_ERROR;
 		lio->u.logio.data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
@@ -130,6 +132,8 @@  qla2x00_async_iocb_timeout(void *data)
 		qla24xx_handle_plogi_done_event(fcport->vha, &ea);
 		break;
 	case SRB_LOGOUT_CMD:
+		if (!fcport)
+			break;
 		qlt_logo_completion_handler(fcport, QLA_FUNCTION_TIMEOUT);
 		break;
 	case SRB_CT_PTHRU_CMD: