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Date: Sun, 29 Nov 2015 10:29:09 +0200 From: Tomas Winkler <tomas.winkler@...el.com> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: Alexander Usyskin <alexander.usyskin@...el.com>, linux-kernel@...r.kernel.org, Tomas Winkler <tomas.winkler@...el.com>, <stable@...r.kernel.org> Subject: [char-misc for v4.4] mei: fix fasync return value on error fasync should return a negative value on error and not poll mask POLLERR. Cc: <stable@...r.kernel.org> # 4.3+ Reported-by: Al Viro <viro@...IV.linux.org.uk> Signed-off-by: Tomas Winkler <tomas.winkler@...el.com> --- drivers/misc/mei/main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index b2f2486b3d75..677d0362f334 100644 --- a/drivers/misc/mei/main.c +++ b/drivers/misc/mei/main.c @@ -657,7 +657,9 @@ out: * @file: pointer to file structure * @band: band bitmap * - * Return: poll mask + * Return: negative on error, + * 0 if it did no changes, + * and positive a process was added or deleted */ static int mei_fasync(int fd, struct file *file, int band) { @@ -665,7 +667,7 @@ static int mei_fasync(int fd, struct file *file, int band) struct mei_cl *cl = file->private_data; if (!mei_cl_is_connected(cl)) - return POLLERR; + return -ENODEV; return fasync_helper(fd, file, band, &cl->ev_async); } -- 2.4.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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