[PATCH 3.17 17/25] usb: gadget: f_fs: signedness bug in __ffs_func_bind_do_descs()

From: Greg Kroah-Hartman
Date: Sun Oct 12 2014 - 22:31:26 EST

3.17-stable review patch. If anyone has any objections, please let me know.


From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

commit 85b06f5e53d17c15844ef3cd45d0c7107f0ae45c upstream.

We need "idx" to be signed for the error handling to work.

Fixes: 6d5c1c77bbf9 ('usb: gadget: f_fs: fix the redundant ep files problem')
Acked-by: Michal Nazarewicz <mina86@xxxxxxxxxx>
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

drivers/usb/gadget/function/f_fs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -2393,7 +2393,8 @@ static int __ffs_func_bind_do_descs(enum
struct usb_endpoint_descriptor *ds = (void *)desc;
struct ffs_function *func = priv;
struct ffs_ep *ffs_ep;
- unsigned ep_desc_id, idx;
+ unsigned ep_desc_id;
+ int idx;
static const char *speed_names[] = { "full", "high", "super" };

if (type != FFS_DESCRIPTOR)

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/