scsi_logging: return void for dev_printk() functions

dev_printk() is now a void function, so the related functions
scmd_printk() and sdev_prefix_printk() should be made void, too.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/scsi_logging.c

@@ -93,20 +93,19 @@ static size_t sdev_format_header(char *logbuf, size_t logbuf_len,
 	return off;
 }
 
-int sdev_prefix_printk(const char *level, const struct scsi_device *sdev,
+void sdev_prefix_printk(const char *level, const struct scsi_device *sdev,
 			const char *name, const char *fmt, ...)
 {
 	va_list args;
 	char *logbuf;
 	size_t off = 0, logbuf_len;
-	int ret;
 
 	if (!sdev)
-		return 0;
+		return;
 
 	logbuf = scsi_log_reserve_buffer(&logbuf_len);
 	if (!logbuf)
-		return 0;
+		return;
 
 	if (name)
 		off += scnprintf(logbuf + off, logbuf_len - off,
@@ -116,26 +115,24 @@ int sdev_prefix_printk(const char *level, const struct scsi_device *sdev,
 		off += vscnprintf(logbuf + off, logbuf_len - off, fmt, args);
 		va_end(args);
 	}
-	ret = dev_printk(level, &sdev->sdev_gendev, "%s", logbuf);
+	dev_printk(level, &sdev->sdev_gendev, "%s", logbuf);
 	scsi_log_release_buffer(logbuf);
-	return ret;
 }
 EXPORT_SYMBOL(sdev_prefix_printk);
 
-int scmd_printk(const char *level, const struct scsi_cmnd *scmd,
+void scmd_printk(const char *level, const struct scsi_cmnd *scmd,
 		const char *fmt, ...)
 {
 	va_list args;
 	char *logbuf;
 	size_t off = 0, logbuf_len;
-	int ret;
 
 	if (!scmd || !scmd->cmnd)
-		return 0;
+		return;
 
 	logbuf = scsi_log_reserve_buffer(&logbuf_len);
 	if (!logbuf)
-		return 0;
+		return;
 	off = sdev_format_header(logbuf, logbuf_len, scmd_name(scmd),
 				 scmd->request->tag);
 	if (off < logbuf_len) {
@@ -143,9 +140,8 @@ int scmd_printk(const char *level, const struct scsi_cmnd *scmd,
 		off += vscnprintf(logbuf + off, logbuf_len - off, fmt, args);
 		va_end(args);
 	}
-	ret = dev_printk(level, &scmd->device->sdev_gendev, "%s", logbuf);
+	dev_printk(level, &scmd->device->sdev_gendev, "%s", logbuf);
 	scsi_log_release_buffer(logbuf);
-	return ret;
 }
 EXPORT_SYMBOL(scmd_printk);
 

include/scsi/scsi_device.h

@@ -237,14 +237,14 @@ struct scsi_dh_data {
  * like scmd_printk, but the device name is passed in
  * as a string pointer
  */
-__printf(4, 5) int
+__printf(4, 5) void
 sdev_prefix_printk(const char *, const struct scsi_device *, const char *,
 		const char *, ...);
 
 #define sdev_printk(l, sdev, fmt, a...)				\
 	sdev_prefix_printk(l, sdev, NULL, fmt, ##a)
 
-__printf(3, 4) int
+__printf(3, 4) void
 scmd_printk(const char *, const struct scsi_cmnd *, const char *, ...);
 
 #define scmd_dbg(scmd, fmt, a...)					   \