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authorHenrique de Moraes Holschuh <hmh@hmh.eng.br>2008-10-09 18:15:29 -0300
committerJohn W. Linville <linville@tuxdriver.com>2008-10-31 19:00:08 -0400
commitcf4b4aab552f5f658ed400dd0cd41f9ac8aac7c1 (patch)
treeae4d83e4d7b1f2ec868c46e37578128502aadec2
parente8975581f63870be42ff4662b293d1b0c8c21350 (diff)
rfkill: use killable locks instead of interruptible
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>
-rw-r--r--net/rfkill/rfkill.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/net/rfkill/rfkill.c b/net/rfkill/rfkill.c
index f949a482b007..08be968f578d 100644
--- a/net/rfkill/rfkill.c
+++ b/net/rfkill/rfkill.c
@@ -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;