s390/scm: remove superfluous lock
Remove the spinlock from struct scm_device. drvdata and attributes
are guarded via device_lock.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/cio/scm.c b/drivers/s390/cio/scm.c
index aa4476e..bcf20f3 100644
--- a/drivers/s390/cio/scm.c
+++ b/drivers/s390/cio/scm.c
@@ -5,7 +5,6 @@
* Author(s): Sebastian Ott <sebott@linux.vnet.ibm.com>
*/
-#include <linux/spinlock.h>
#include <linux/device.h>
#include <linux/module.h>
#include <linux/mutex.h>
@@ -134,9 +133,9 @@
struct scm_device *scmdev = to_scm_dev(dev); \
int ret; \
\
- spin_lock(&scmdev->lock); \
+ device_lock(dev); \
ret = sprintf(buf, "%u\n", scmdev->attrs.name); \
- spin_unlock(&scmdev->lock); \
+ device_unlock(dev); \
\
return ret; \
} \
@@ -193,7 +192,6 @@
scmdev->dev.bus = &scm_bus_type;
scmdev->dev.release = scmdev_release;
scmdev->dev.groups = scmdev_attr_groups;
- spin_lock_init(&scmdev->lock);
}
/*