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-rw-r--r--fs/f2fs/super.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index be8be445c6ed..230845221c74 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -586,7 +586,7 @@ static int parse_options(struct super_block *sb, char *options)
case Opt_io_size_bits:
if (args->from && match_int(args, &arg))
return -EINVAL;
- if (arg > __ilog2_u32(BIO_MAX_PAGES)) {
+ if (arg <= 0 || arg > __ilog2_u32(BIO_MAX_PAGES)) {
f2fs_msg(sb, KERN_WARNING,
"Not support %d, larger than %d",
1 << arg, BIO_MAX_PAGES);