From: Zhang Qilong zhangqilong3@huawei.com
commit 87bed3d7d26c974948a3d6e7176f304b2d41272b upstream.
usb_get_gadget_udc_name will alloc memory for CHIP in "Enomem" branch. we should free it before error returns to prevent memleak.
Fixes: 175f712119c57 ("usb: gadget: provide interface for legacy gadgets to get UDC name") Reported-by: Hulk Robot hulkci@huawei.com Acked-by: Alan Stern stern@rowland.harvard.edu Signed-off-by: Zhang Qilong zhangqilong3@huawei.com Link: https://lore.kernel.org/r/20201117021629.1470544-3-zhangqilong3@huawei.com Cc: stable stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/gadget/legacy/inode.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c index 25d417ad9000..09ed5f02c24f 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -2039,6 +2039,9 @@ gadgetfs_fill_super (struct super_block *sb, void *opts, int silent) return 0;
Enomem: + kfree(CHIP); + CHIP = NULL; + return -ENOMEM; }