qeth: Remove usage of subsys.rwsem

the current driver tree contains the removal of subsys.rwsem.
Unfortunately, this breaks qeth. However, it should be no problem to
fix the walking of the devices for /proc/qeth:

No need to take subsys.rwsem during walking the devices,
driver_find_devices() should already suffice.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/s390/net/qeth_proc.c b/drivers/s390/net/qeth_proc.c
index 81f805cc5ee7a3e2723952d00e0a502f43dc3ff2..89d56c8ecdd21600ba10099c7267f9083e28522f 100644 (file)
--- a/drivers/s390/net/qeth_proc.c
+++ b/drivers/s390/net/qeth_proc.c
@@ -37,7 +37,6 @@ qeth_procfile_seq_start(struct seq_file *s, loff_t *offset)
        struct device *dev = NULL;
        loff_t nr = 0;
 
-       down_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
        if (*offset == 0)
                return SEQ_START_TOKEN;
        while (1) {
@@ -53,7 +52,6 @@ qeth_procfile_seq_start(struct seq_file *s, loff_t *offset)
 static void
 qeth_procfile_seq_stop(struct seq_file *s, void* it)
 {
-       up_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
 }
 
 static void *