From 855591d2f7d1ff7eb18b60ce2be494e3bfe27fb8 Mon Sep 17 00:00:00 2001 From: Tom Lendacky Date: Mon, 5 Oct 2015 10:51:03 -0500 Subject: [PATCH] amd-xgbe: Check for successful buffer allocation before use The kasprintf function can return NULL if the allocation fails. Check for successful allocation before attempting to use the returned buffer. Signed-off-by: Tom Lendacky Signed-off-by: David S. Miller --- drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c b/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c index 66137ffea3f8..96f485ab612e 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c @@ -327,6 +327,9 @@ void xgbe_debugfs_init(struct xgbe_prv_data *pdata) pdata->debugfs_xpcs_reg = 0; buf = kasprintf(GFP_KERNEL, "amd-xgbe-%s", pdata->netdev->name); + if (!buf) + return; + pdata->xgbe_debugfs = debugfs_create_dir(buf, NULL); if (!pdata->xgbe_debugfs) { netdev_err(pdata->netdev, "debugfs_create_dir failed\n"); -- 2.20.1