The comment for the __register_blkdev function states that if the major parameter of this function is 0, it will return the major value upon successful execution, and the range of major is [1..BLKDEV_MAJOR_MAX-1]. However, It seems that in this case, the actual returned major is in the range of [1..BLKDEV_MAJOR_HASH_SIZE-1]. Therefore, we will modify the comment to ensure that it is consistent with the actual range of the major value returned by the function. Signed-off-by: MengEn Sun <mengensun@xxxxxxxxxxx> --- block/genhd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/genhd.c b/block/genhd.c index 9130e16..188163f 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -204,7 +204,7 @@ void blkdev_show(struct seq_file *seqf, off_t offset) * then the function returns zero on success, or a negative error code * - if any unused major number was requested with @major = 0 parameter * then the return value is the allocated major number in range - * [1..BLKDEV_MAJOR_MAX-1] or a negative error code otherwise + * [1..BLKDEV_MAJOR_HASH_SIZE-1] or a negative error code otherwise * * See Documentation/admin-guide/devices.txt for the list of allocated * major numbers. -- 1.8.3.1
