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>
diff --git a/lib/checksum.c b/lib/checksum.c
index b08c2d0..0975087 100644
--- a/lib/checksum.c
+++ b/lib/checksum.c
@@ -57,9 +57,9 @@
odd = 1 & (unsigned long) buff;
if (odd) {
#ifdef __LITTLE_ENDIAN
- result = *buff;
-#else
result += (*buff << 8);
+#else
+ result = *buff;
#endif
len--;
buff++;