From: Andrew Duggan <aduggan@synaptics.com>
Date: Wed, 28 Nov 2012 03:02:27 +0000 (-0800)
Subject: HID: hidraw: fix signaling SIGIO when hidraw reports an event
X-Git-Tag: v3.8-rc1~130^2^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b5531318f18b5054c0e4a82beb560a77d85948d8;p=platform%2Fkernel%2Flinux-exynos.git

HID: hidraw: fix signaling SIGIO when hidraw reports an event

This patch fixes sending SIGIO from hidraw_report_event by creating a fasync
handler which adds the fasync entry.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---

diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 1d8c021..413a731 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -295,6 +295,13 @@ out:
 
 }
 
+static int hidraw_fasync(int fd, struct file *file, int on)
+{
+	struct hidraw_list *list = file->private_data;
+
+	return fasync_helper(fd, file, on, &list->fasync);
+}
+
 static int hidraw_release(struct inode * inode, struct file * file)
 {
 	unsigned int minor = iminor(inode);
@@ -438,6 +445,7 @@ static const struct file_operations hidraw_ops = {
 	.open =         hidraw_open,
 	.release =      hidraw_release,
 	.unlocked_ioctl = hidraw_ioctl,
+	.fasync =	hidraw_fasync,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl   = hidraw_ioctl,
 #endif