A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 03:01:39 -04:00
Code Issues Projects Releases Packages Wiki Activity

HID: hidraw: close underlying device at removal of last reader

Browse source 
Even though device exist bit is set the underlying
HW device should be closed when the last reader
of the device is closed i.e. open count drops to zero.

Signed-off-by: Manoj Chourasia <[email protected]>
Reported-by: [email protected]
Tested-by: [email protected]
Signed-off-by: Jiri Kosina <[email protected]>
This commit is contained in:
Manoj Chourasia 2013-10-01 15:39:00 +05:30 • committed by Jiri Kosina
commit 0f5a24c660
1 changed files with 14 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

21
drivers/hid/hidraw.c
View file

@ -308,18 +308,25 @@ static int hidraw_fasync(int fd, struct file *file, int on)
static void drop_ref(struct hidraw *hidraw, int exists_bit)
{
if (exists_bit) {
hid_hw_close(hidraw->hid);
hidraw->exist = 0;
if (hidraw->open)
if (hidraw->open) {
hid_hw_close(hidraw->hid);
wake_up_interruptible(&hidraw->wait);
}
} else {
--hidraw->open;
}
if (!hidraw->open && !hidraw->exist) {
device_destroy(hidraw_class, MKDEV(hidraw_major, hidraw->minor));
hidraw_table[hidraw->minor] = NULL;
kfree(hidraw);
if (!hidraw->open) {
if (!hidraw->exist) {
device_destroy(hidraw_class,
MKDEV(hidraw_major, hidraw->minor));
hidraw_table[hidraw->minor] = NULL;
kfree(hidraw);
} else {
/* close device for last reader */
hid_hw_power(hidraw->hid, PM_HINT_NORMAL);
hid_hw_close(hidraw->hid);
}
}
}