diff mbox series

[net-next,3/3] net: ti: icss-iep: Fix possible NULL pointer dereference for perout request

Message ID 20250317101551.1005706-4-m-malladi@ti.com (mailing list archive)
State New
Headers show
Series Bug fixes from XDP and perout series | expand

Commit Message

Meghana Malladi March 17, 2025, 10:15 a.m. UTC 
Whenever there is a perout request from the user application,
kernel receives req structure containing the configuration info
for that req. Add NULL pointer handling for perout request if
that req struct points to NULL.

Fixes: e5b456a14215 ("net: ti: icss-iep: Add pwidth configuration for perout signal")
Signed-off-by: Meghana Malladi <m-malladi@ti.com>
---
 drivers/net/ethernet/ti/icssg/icss_iep.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/ti/icssg/icss_iep.c b/drivers/net/ethernet/ti/icssg/icss_iep.c
index b4a34c57b7b4..aeebdc4c121e 100644
--- a/drivers/net/ethernet/ti/icssg/icss_iep.c
+++ b/drivers/net/ethernet/ti/icssg/icss_iep.c
@@ -498,6 +498,10 @@  static int icss_iep_perout_enable(struct icss_iep *iep,
 {
 	int ret = 0;
 
+	/* Return error if the req is NULL */
+	if (!req)
+		return -EINVAL;
+
 	/* Reject requests with unsupported flags */
 	if (req->flags & ~(PTP_PEROUT_DUTY_CYCLE |
 			  PTP_PEROUT_PHASE))