lib/checksum: fix one more thinko

When do_csum gets unaligned data, we really need to treat
the first byte as an even byte, not an odd byte, because
we swap the two halves later.

Found by Mike's checksum-selftest module.

Reported-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/checksum.c b/lib/checksum.c
index b08c2d059024..097508732f34 100644
--- a/lib/checksum.c
+++ b/lib/checksum.c
@@ -57,9 +57,9 @@ static unsigned int do_csum(const unsigned char *buff, int len)
         odd = 1 & (unsigned long) buff;
         if (odd) {
 #ifdef __LITTLE_ENDIAN
-                result = *buff;
-#else
                 result += (*buff << 8);
+#else
+                result = *buff;
 #endif
                 len--;
                 buff++;