diff options
Diffstat (limited to 'drivers/s390/char/vmcp.c')
| -rw-r--r-- | drivers/s390/char/vmcp.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c index 09e7d9bf438b..a6087cec55b4 100644 --- a/drivers/s390/char/vmcp.c +++ b/drivers/s390/char/vmcp.c @@ -11,12 +11,14 @@ * The idea of this driver is based on cpint from Neale Ferguson and #CP in CMS */ +#define KMSG_COMPONENT "vmcp" +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt + #include <linux/fs.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/miscdevice.h> #include <linux/module.h> -#include <linux/smp_lock.h> #include <asm/cpcmd.h> #include <asm/debug.h> #include <asm/uaccess.h> @@ -26,8 +28,6 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Christian Borntraeger <borntraeger@de.ibm.com>"); MODULE_DESCRIPTION("z/VM CP interface"); -#define PRINTK_HEADER "vmcp: " - static debug_info_t *vmcp_debug; static int vmcp_open(struct inode *inode, struct file *file) @@ -41,13 +41,11 @@ static int vmcp_open(struct inode *inode, struct file *file) if (!session) return -ENOMEM; - lock_kernel(); session->bufsize = PAGE_SIZE; session->response = NULL; session->resp_size = 0; mutex_init(&session->mutex); file->private_data = session; - unlock_kernel(); return nonseekable_open(inode, file); } @@ -193,7 +191,8 @@ static int __init vmcp_init(void) int ret; if (!MACHINE_IS_VM) { - PRINT_WARN("z/VM CP interface is only available under z/VM\n"); + pr_warning("The z/VM CP interface device driver cannot be " + "loaded without z/VM\n"); return -ENODEV; } |