The patch below does not apply to the 3.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable@xxxxxxxxxxxxxxx>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From a3058a5d82e296daaca07411c3738a9ddd79f302 Mon Sep 17 00:00:00 2001 From: Robert Baldyga <r.baldyga@xxxxxxxxxxx> Date: Thu, 9 Oct 2014 09:41:16 +0200 Subject: [PATCH] usb: gadget: f_fs: remove redundant ffs_data_get() During FunctionFS bind, ffs_data_get() function was called twice (in functionfs_bind() and in ffs_do_functionfs_bind()), while on unbind ffs_data_put() was called once (in functionfs_unbind() function). In result refcount never reached value 0, and ffs memory resources has been never released. Since ffs_data_get() call in ffs_do_functionfs_bind() is redundant and not neccessary, we remove it to have equal number of gets ans puts, and free allocated memory after refcount reach 0. Fixes: 5920cda (usb: gadget: FunctionFS: convert to new function interface with backward compatibility) Cc: <stable@xxxxxxxxxxxxxxx> # v3.14+ Signed-off-by: Robert Baldyga <r.baldyga@xxxxxxxxxxx> Signed-off-by: Felipe Balbi <balbi@xxxxxx> diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index 7c6771d027a2..12dbdafd78a8 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -2663,8 +2663,6 @@ static inline struct f_fs_opts *ffs_do_functionfs_bind(struct usb_function *f, func->conf = c; func->gadget = c->cdev->gadget; - ffs_data_get(func->ffs); - /* * in drivers/usb/gadget/configfs.c:configfs_composite_bind() * configurations are bound in sequence with list_for_each_entry, -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html