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amd-xgbe: Check for successful buffer allocation before use

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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 <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Lendacky 2015-10-05 10:51:03 -05:00 committed by David S. Miller
parent 83ffe99f52
commit 855591d2f7
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c
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@ -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");