From f33ff110ef31bd250bb8a16cfc4e883aa2b36767 Mon Sep 17 00:00:00 2001 From: "Srivatsa S. Bhat" Date: Mon, 5 Feb 2018 18:25:27 -0800 Subject: block, char_dev: Use correct format specifier for unsigned ints register_blkdev() and __register_chrdev_region() treat the major number as an unsigned int. So print it the same way to avoid absurd error statements such as: "... major requested (-1) is greater than the maximum (511) ..." (and also fix off-by-one bugs in the error prints). While at it, also update the comment describing register_blkdev(). Signed-off-by: Srivatsa S. Bhat Reviewed-by: Logan Gunthorpe Signed-off-by: Greg Kroah-Hartman --- fs/char_dev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/char_dev.c') diff --git a/fs/char_dev.c b/fs/char_dev.c index 33c938542160..a279c58fe360 100644 --- a/fs/char_dev.c +++ b/fs/char_dev.c @@ -121,8 +121,8 @@ __register_chrdev_region(unsigned int major, unsigned int baseminor, } if (major >= CHRDEV_MAJOR_MAX) { - pr_err("CHRDEV \"%s\" major requested (%d) is greater than the maximum (%d)\n", - name, major, CHRDEV_MAJOR_MAX); + pr_err("CHRDEV \"%s\" major requested (%u) is greater than the maximum (%u)\n", + name, major, CHRDEV_MAJOR_MAX-1); ret = -EINVAL; goto out; } -- cgit