f2fs: check inject_rate validity during configuring

Type of inject_rate is unsigned int, let's check new value's
validity during configuring.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 0575edb..02d4012 100644 (file)
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -222,6 +222,8 @@ out:
 #ifdef CONFIG_F2FS_FAULT_INJECTION
        if (a->struct_type == FAULT_INFO_TYPE && t >= (1 << FAULT_MAX))
                return -EINVAL;
+       if (a->struct_type == FAULT_INFO_RATE && t >= UINT_MAX)
+               return -EINVAL;
 #endif
        if (a->struct_type == RESERVED_BLOCKS) {
                spin_lock(&sbi->stat_lock);