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 <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]>
wafgo · Nov 3, 2009 · 0a5549e · 0a5549e
1 parent 20c1f64
commit 0a5549e
Showing 1 changed file with 2 additions and 2 deletions.
diff --git 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++;