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-rw-r--r--fs/ubifs/debug.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c
index 6e025e02ffde..cc1febd8fadf 100644
--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -2563,9 +2563,9 @@ static int corrupt_data(const struct ubifs_info *c, const void *buf,
unsigned int from, to, ffs = chance(1, 2);
unsigned char *p = (void *)buf;
- from = prandom_u32() % (len + 1);
- /* Corruption may only span one max. write unit */
- to = min(len, ALIGN(from, c->max_write_size));
+ from = prandom_u32() % len;
+ /* Corruption span max to end of write unit */
+ to = min(len, ALIGN(from + 1, c->max_write_size));
ubifs_warn("filled bytes %u-%u with %s", from, to - 1,
ffs ? "0xFFs" : "random data");