[PATCH 9/9] target: fix empty-body warning in target_core_pscsi.c

[Randy Dunlap]

Fix gcc empty-body warning when -Wextra is used:

../drivers/target/target_core_pscsi.c:624:5: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]

Signed-off-by: Randy Dunlap <rdunlap at infradead.org>
Cc: Linus Torvalds <torvalds at linux-foundation.org>
Cc: Andrew Morton <akpm at linux-foundation.org>
Cc: "Martin K. Petersen" <martin.petersen at oracle.com>
Cc: linux-scsi at vger.kernel.org
Cc: target-devel at vger.kernel.org
---
 drivers/target/target_core_pscsi.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- linux-next-20200417.orig/drivers/target/target_core_pscsi.c
+++ linux-next-20200417/drivers/target/target_core_pscsi.c
@@ -18,6 +18,7 @@
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/genhd.h>
+#include <linux/kernel.h>
 #include <linux/cdrom.h>
 #include <linux/ratelimit.h>
 #include <linux/module.h>
@@ -621,7 +622,7 @@ static void pscsi_complete_cmd(struct se
 
 			buf = transport_kmap_data_sg(cmd);
 			if (!buf)
-				; /* XXX: TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE */
+				do_empty(); /* XXX: TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE */
 
 			if (cdb[0] == MODE_SENSE_10) {
 				if (!(buf[3] & 0x80))