diff options
| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2014-01-27 16:28:10 +0400 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-02-21 11:50:12 +0400 |
| commit | 1e5320960510d6d6f2cbdc7ed33df9791283b7ea (patch) | |
| tree | 85e3fbb9184567856ad88125d7edb7a93e4bd059 /arch/s390/include/asm/ccwdev.h | |
| parent | 2253e8d79237c69086ded391e6767afe16972527 (diff) | |
| download | linux-1e5320960510d6d6f2cbdc7ed33df9791283b7ea.tar.xz | |
s390/cio: reorder initialization of ccw consoles
Drivers for ccw consoles use ccw_device_probe_console to receive
an initialized ccw device which is already enabled for interrupts.
After that the device driver does the initialization of its private
data. This can race with unsolicited interrupts which can happen
once the device is enabled for interrupts.
Split ccw_device_probe_console into ccw_device_create_console and
ccw_device_enable_console and reorder the initialization of the ccw
console drivers.
While at it mark these functions as __init.
Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/ccwdev.h')
| -rw-r--r-- | arch/s390/include/asm/ccwdev.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index 31b5ca8f8c3d..a9c2c0686177 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -219,7 +219,9 @@ extern void ccw_device_get_id(struct ccw_device *, struct ccw_dev_id *); #define to_ccwdev(n) container_of(n, struct ccw_device, dev) #define to_ccwdrv(n) container_of(n, struct ccw_driver, driver) -extern struct ccw_device *ccw_device_probe_console(struct ccw_driver *); +extern struct ccw_device *ccw_device_create_console(struct ccw_driver *); +extern void ccw_device_destroy_console(struct ccw_device *); +extern int ccw_device_enable_console(struct ccw_device *); extern void ccw_device_wait_idle(struct ccw_device *); extern int ccw_device_force_console(struct ccw_device *); |