fasync should return a negative value on error and not poll mask POLLERR. Cc: <stable@xxxxxxxxxxxxxxx> # 4.3+ Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx> Reported-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx> Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx> --- 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 1ee8b492fc4a..36ca15234344 100644 --- a/drivers/misc/mei/main.c +++ b/drivers/misc/mei/main.c @@ -653,7 +653,9 @@ 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) { @@ -661,7 +663,7 @@ 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 stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html