[PATCH] scsi: qedf: Fix potential null pointer dereference

From: Liao Chen
Date: Thu Sep 12 2024 - 23:45:50 EST


qedf is checked to be null in this if branch, accessing its member will
cause a null pointer dereference. Fix it by passing a direct NULL into
the error function.

Fixes: 51071f0831ea ("scsi: qedf: Don't process stag work during unload and recovery")
Signed-off-by: Liao Chen <liaochen4@xxxxxxxxxx>
---
drivers/scsi/qedf/qedf_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
index 4813087e58a1..9d4738db0e51 100644
--- a/drivers/scsi/qedf/qedf_main.c
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -4021,7 +4021,7 @@ void qedf_stag_change_work(struct work_struct *work)
container_of(work, struct qedf_ctx, stag_work.work);

if (!qedf) {
- QEDF_ERR(&qedf->dbg_ctx, "qedf is NULL");
+ QEDF_ERR(NULL, "qedf is NULL");
return;
}

--
2.34.1