block-vvfat: fix a warning

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-04-25 00:08:05 +02:00 · 2009-04-25 00:08:05 +02:00 · 5606c2208b
parent d6dc3d424e
commit 5606c2208b
1 changed files with 6 additions and 3 deletions
--- a/block-vvfat.c
+++ b/block-vvfat.c
@ -509,9 +509,12 @@ static inline uint8_t fat_chksum(const direntry_t* entry)
    uint8_t chksum=0;
    int i;

-    for(i=0;i<11;i++)
-	chksum=(((chksum&0xfe)>>1)|((chksum&0x01)?0x80:0))
-	    +(unsigned char)entry->name[i];
+    for(i=0;i<11;i++) {
+        unsigned char c;
+
+        c = (i <= 8) ? entry->name[i] : entry->extension[i-8];
+        chksum=(((chksum&0xfe)>>1)|((chksum&0x01)?0x80:0)) + c;
+    }

    return chksum;
 }