[PATCH] raid6test: Use str_plural() to fix Coccinelle warning

[Thorsten Blum <thorsten.blum@xxxxxxxxxx>]

Fixes the following Coccinelle/coccicheck warning reported by
string_choices.cocci:

	opportunity for str_plural(err)

Signed-off-by: Thorsten Blum <thorsten.blum@xxxxxxxxxx>
---
 crypto/async_tx/raid6test.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/crypto/async_tx/raid6test.c b/crypto/async_tx/raid6test.c
index d3fbee1e03e5..3826ccf0b9cc 100644
--- a/crypto/async_tx/raid6test.c
+++ b/crypto/async_tx/raid6test.c
@@ -11,6 +11,7 @@
 #include <linux/mm.h>
 #include <linux/random.h>
 #include <linux/module.h>
+#include <linux/string_choices.h>
 
 #undef pr
 #define pr(fmt, args...) pr_info("raid6test: " fmt, ##args)
@@ -228,7 +229,7 @@ static int __init raid6_test(void)
 
 	pr("\n");
 	pr("complete (%d tests, %d failure%s)\n",
-	   tests, err, err == 1 ? "" : "s");
+	   tests, err, str_plural(err));
 
 	for (i = 0; i < NDISKS+3; i++)
 		put_page(data[i]);
-- 
2.44.0