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path: root/drivers/s390/char/monwriter.c
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Diffstat (limited to 'drivers/s390/char/monwriter.c')
-rw-r--r--drivers/s390/char/monwriter.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/s390/char/monwriter.c b/drivers/s390/char/monwriter.c
index 4d71aa8c1a79..c7d7483bab9a 100644
--- a/drivers/s390/char/monwriter.c
+++ b/drivers/s390/char/monwriter.c
@@ -8,6 +8,9 @@
* Author(s): Melissa Howland <Melissa.Howland@us.ibm.com>
*/
+#define KMSG_COMPONENT "monwriter"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
@@ -64,9 +67,9 @@ static int monwrite_diag(struct monwrite_hdr *myhdr, char *buffer, int fcn)
rc = appldata_asm(&id, fcn, (void *) buffer, myhdr->datalen);
if (rc <= 0)
return rc;
+ pr_err("Writing monitor data failed with rc=%i\n", rc);
if (rc == 5)
return -EPERM;
- printk("DIAG X'DC' error with return code: %i\n", rc);
return -EINVAL;
}