mm/zswap.c: delete an error message for a failed memory allocation in zswap_pool_create()

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
Link: http://lkml.kernel.org/r/2345aabc-ae98-1d31-afba-40a02c5baf3d@users.sourceforge.net
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Seth Jennings <sjenning@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/zswap.c b/mm/zswap.c
index eedc278..18d8e87 100644 (file)
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -515,10 +515,8 @@ static struct zswap_pool *zswap_pool_create(char *type, char *compressor)
        }
 
        pool = kzalloc(sizeof(*pool), GFP_KERNEL);
-       if (!pool) {
-               pr_err("pool alloc failed\n");
+       if (!pool)
                return NULL;
-       }
 
        /* unique name for each pool specifically required by zsmalloc */
        snprintf(name, 38, "zswap%x", atomic_inc_return(&zswap_pools_count));