This is a note to let you know that I've just added the patch titled
usb: gadget: f_fs: do not set cancel function on synchronous {read,write}
to the 4.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-gadget-f_fs-do-not-set-cancel-function-on-synchronous-read-write.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 4088acf1e845aba35f30fb91dee10649edbd0e84 Mon Sep 17 00:00:00 2001
From: Rui Miguel Silva <rui.silva@xxxxxxxxxx>
Date: Mon, 18 May 2015 16:02:07 +0100
Subject: usb: gadget: f_fs: do not set cancel function on synchronous {read,write}
From: Rui Miguel Silva <rui.silva@xxxxxxxxxx>
commit 4088acf1e845aba35f30fb91dee10649edbd0e84 upstream.
do not try to set cancel function in synchronous operations in
ffs_epfile_{read,write}_iter.
Acked-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Rui Miguel Silva <rui.silva@xxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/gadget/function/f_fs.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -924,7 +924,8 @@ static ssize_t ffs_epfile_write_iter(str
kiocb->private = p;
- kiocb_set_cancel_fn(kiocb, ffs_aio_cancel);
+ if (p->aio)
+ kiocb_set_cancel_fn(kiocb, ffs_aio_cancel);
res = ffs_epfile_io(kiocb->ki_filp, p);
if (res == -EIOCBQUEUED)
@@ -968,7 +969,8 @@ static ssize_t ffs_epfile_read_iter(stru
kiocb->private = p;
- kiocb_set_cancel_fn(kiocb, ffs_aio_cancel);
+ if (p->aio)
+ kiocb_set_cancel_fn(kiocb, ffs_aio_cancel);
res = ffs_epfile_io(kiocb->ki_filp, p);
if (res == -EIOCBQUEUED)
Patches currently in stable-queue which might be from rui.silva@xxxxxxxxxx are
queue-4.1/usb-gadget-f_fs-do-not-set-cancel-function-on-synchronous-read-write.patch
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