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-rw-r--r--src/cryptsetup_reencrypt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cryptsetup_reencrypt.c b/src/cryptsetup_reencrypt.c
index 2419808..a6e077f 100644
--- a/src/cryptsetup_reencrypt.c
+++ b/src/cryptsetup_reencrypt.c
@@ -852,7 +852,7 @@ static void zero_rest_of_device(int fd, size_t block_size, void *buf,
s1 = block_size;
while (!quit && *bytes) {
- if (*bytes < s1)
+ if (*bytes < (uint64_t)s1)
s1 = *bytes;
s2 = write(fd, buf, s1);