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[net,v2,6/7] net: ethernet: ti: cpsw: add missing sanity check

Message ID 1479400804-9847-7-git-send-email-johan@kernel.org
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Johan Hovold Nov. 17, 2016, 4:40 p.m. UTC 
Make sure to check for allocation failures before dereferencing a
NULL-pointer during probe.

Fixes: 649a1688c960 ("net: ethernet: ti: cpsw: create common struct to
hold shared driver data")
Signed-off-by: Johan Hovold <johan@kernel.org>
---
 drivers/net/ethernet/ti/cpsw.c | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 11b2daef3158..1387299030e4 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -2588,6 +2588,9 @@  static int cpsw_probe(struct platform_device *pdev)
 	int irq;
 
 	cpsw = devm_kzalloc(&pdev->dev, sizeof(struct cpsw_common), GFP_KERNEL);
+	if (!cpsw)
+		return -ENOMEM;
+
 	cpsw->dev = &pdev->dev;
 
 	ndev = alloc_etherdev_mq(sizeof(struct cpsw_priv), CPSW_MAX_QUEUES);