[S390] vmcp cleanup
A number of small changes to vmcp:
- Change preferred email address.
- Use PRINT_xxx machros from debug.h like most s390 drivers, define
"vmcp:" as PRINTK_HEADER and wrap error message at column 80.
- Add error number to error message.
- Update copyright, as I touched this file.
- Small whitespace diff.
- Use mutex instead of semaphore (Thanks Heiko for the patch)
- Don't register debug feature on failure.
- Check debug feature registration on init to avoid a potential oops
on unload if the debug feature could not be registered--> 2 more
messages.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/char/vmcp.h b/drivers/s390/char/vmcp.h
index 8a5975f..6a99394 100644
--- a/drivers/s390/char/vmcp.h
+++ b/drivers/s390/char/vmcp.h
@@ -12,8 +12,8 @@
* The idea of this driver is based on cpint from Neale Ferguson
*/
-#include <asm/semaphore.h>
#include <linux/ioctl.h>
+#include <linux/mutex.h>
#define VMCP_GETCODE _IOR(0x10, 1, int)
#define VMCP_SETBUF _IOW(0x10, 2, int)
@@ -26,5 +26,5 @@
int resp_code;
/* As we use copy_from/to_user, which might *
* sleep and cannot use a spinlock */
- struct semaphore mutex;
+ struct mutex mutex;
};