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-rw-r--r--patch-delta.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/patch-delta.c b/patch-delta.c
index ed9db81..ef748ce 100644
--- a/patch-delta.c
+++ b/patch-delta.c
@@ -44,7 +44,7 @@ void *patch_delta(const void *src_buf, unsigned long src_size,
if (cmd & 0x01) cp_off = *data++;
if (cmd & 0x02) cp_off |= (*data++ << 8);
if (cmd & 0x04) cp_off |= (*data++ << 16);
- if (cmd & 0x08) cp_off |= (*data++ << 24);
+ if (cmd & 0x08) cp_off |= ((unsigned) *data++ << 24);
if (cmd & 0x10) cp_size = *data++;
if (cmd & 0x20) cp_size |= (*data++ << 8);
if (cmd & 0x40) cp_size |= (*data++ << 16);