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usb: gadget: f_fs: check for allocation failure

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Return -ENOMEM if kmalloc() fails.

Fixes: 9353afbbfa ('usb: gadget: f_fs: buffer data from ‘oversized’ OUT requests')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Dan Carpenter 2016-06-24 15:23:16 +03:00 committed by Felipe Balbi
parent e43470dbdf
commit 44963d649d
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/gadget/function/f_fs.c
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@ -775,6 +775,8 @@ static ssize_t __ffs_epfile_read_data(struct ffs_epfile *epfile,
data_len -= ret;
buf = kmalloc(sizeof(*buf) + data_len, GFP_KERNEL);
if (!buf)
return -ENOMEM;
buf->length = data_len;
buf->data = buf->storage;
memcpy(buf->storage, data + ret, data_len);