lkml.org 
[lkml]   [2012]   [Dec]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] hwspinlock/core: Fix unbalanced module_get on error path
Date
In case pm_runtime_get_sync() fails, __hwspin_lock_request will exit
without calling module_put. As a result, the module could never be
removed. Fix this.

Signed-off-by: Ido Yariv <ido@wizery.com>
---
drivers/hwspinlock/hwspinlock_core.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/hwspinlock/hwspinlock_core.c b/drivers/hwspinlock/hwspinlock_core.c
index db713c0..085e28e 100644
--- a/drivers/hwspinlock/hwspinlock_core.c
+++ b/drivers/hwspinlock/hwspinlock_core.c
@@ -415,6 +415,7 @@ static int __hwspin_lock_request(struct hwspinlock *hwlock)
/* notify PM core that power is now needed */
ret = pm_runtime_get_sync(dev);
if (ret < 0) {
+ module_put(dev->driver->owner);
dev_err(dev, "%s: can't power on device\n", __func__);
return ret;
}
--
1.7.7.6


\
 
 \ /
  Last update: 2012-12-12 21:41    [W:0.028 / U:0.928 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site