korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-29 07:04:10 +08:00
Code Issues Packages Projects Releases Wiki Activity

rfkill: use killable locks instead of interruptible

Browse Source 
Apparently, many applications don't expect to get EAGAIN from fd read/write
operations, since POSIX doesn't mandate it.

Use mutex_lock_killable instead of mutex_lock_interruptible, which won't
cause issues.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Henrique de Moraes Holschuh 2008-10-09 18:15:29 -03:00 committed by John W. Linville
parent e8975581f6
commit cf4b4aab55
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
net/rfkill/rfkill.c
View File

@ -431,8 +431,9 @@ static ssize_t rfkill_state_store(struct device *dev,
state != RFKILL_STATE_SOFT_BLOCKED)
return -EINVAL;
if (mutex_lock_interruptible(&rfkill->mutex))
return -ERESTARTSYS;
error = mutex_lock_killable(&rfkill->mutex);
if (error)
return error;
error = rfkill_toggle_radio(rfkill, state, 0);
mutex_unlock(&rfkill->mutex);
@ -472,7 +473,7 @@ static ssize_t rfkill_claim_store(struct device *dev,
* Take the global lock to make sure the kernel is not in
* the middle of rfkill_switch_all
*/
error = mutex_lock_interruptible(&rfkill_global_mutex);
error = mutex_lock_killable(&rfkill_global_mutex);
if (error)
return error;