From: Wang Hai wanghai38@huawei.com
[ Upstream commit 1c40cde6b5171d9c8dfc69be00464fd1c75e210b ]
In com20020_probe(), if com20020_config() fails, dev and info will not be freed, which will lead to a memory leak.
This patch adds freeing dev and info after com20020_config() fails to fix this bug.
Compile tested only.
Fixes: 15b99ac17295 ("[PATCH] pcmcia: add return value to _config() functions") Signed-off-by: Wang Hai wanghai38@huawei.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/arcnet/com20020_cs.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/net/arcnet/com20020_cs.c b/drivers/net/arcnet/com20020_cs.c index 9cc5eb6a8e90..e0c7720bd5da 100644 --- a/drivers/net/arcnet/com20020_cs.c +++ b/drivers/net/arcnet/com20020_cs.c @@ -113,6 +113,7 @@ static int com20020_probe(struct pcmcia_device *p_dev) struct com20020_dev *info; struct net_device *dev; struct arcnet_local *lp; + int ret = -ENOMEM;
dev_dbg(&p_dev->dev, "com20020_attach()\n");
@@ -142,12 +143,18 @@ static int com20020_probe(struct pcmcia_device *p_dev) info->dev = dev; p_dev->priv = info;
- return com20020_config(p_dev); + ret = com20020_config(p_dev); + if (ret) + goto fail_config; + + return 0;
+fail_config: + free_arcdev(dev); fail_alloc_dev: kfree(info); fail_alloc_info: - return -ENOMEM; + return ret; } /* com20020_attach */
static void com20020_detach(struct pcmcia_device *link)