From: Sebastian Ott Date: Fri, 13 Jun 2014 15:29:11 +0000 (+0200) Subject: s390/ccwgroup: fix an uninitialized return code X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0310c8b582d70e2d5070600f7b2c93a22dc4e7e0;p=linux-beck.git s390/ccwgroup: fix an uninitialized return code Since commit 0b60f9ead5d4816e7e3d6e28f4a0d22d4a1b2513 "s390: use device_remove_file_self() instead of device_schedule_callback()" the return code of ccwgroup_ungroup_store is uninitialized. Make sure the rc is always initialized. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky --- diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index 040e643746aa..4ec19870447e 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -184,7 +184,7 @@ static ssize_t ccwgroup_ungroup_store(struct device *dev, const char *buf, size_t count) { struct ccwgroup_device *gdev = to_ccwgroupdev(dev); - int rc; + int rc = 0; /* Prevent concurrent online/offline processing and ungrouping. */ if (atomic_cmpxchg(&gdev->onoff, 0, 1) != 0) @@ -196,11 +196,12 @@ static ssize_t ccwgroup_ungroup_store(struct device *dev, if (device_remove_file_self(dev, attr)) ccwgroup_ungroup(gdev); + else + rc = -ENODEV; out: if (rc) { - if (rc != -EAGAIN) - /* Release onoff "lock" when ungrouping failed. */ - atomic_set(&gdev->onoff, 0); + /* Release onoff "lock" when ungrouping failed. */ + atomic_set(&gdev->onoff, 0); return rc; } return count;