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| author |   Srivatsa S. Bhat <srivatsa@csail.mit.edu> | 2018-02-05 18:25:27 -0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-15 17:59:24 +0100 |
| commit | f33ff110ef31bd250bb8a16cfc4e883aa2b36767 (patch) | |
| tree | f3badb24cc0bfb74515d6ac73d2d74593734121a /fs/char_dev.c | |
| parent | char_dev: Fix off-by-one bugs in find_dynamic_major() (diff) | |
| download | linux-dev-f33ff110ef31bd250bb8a16cfc4e883aa2b36767.tar.xz linux-dev-f33ff110ef31bd250bb8a16cfc4e883aa2b36767.zip | |
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 <srivatsa@csail.mit.edu>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/char_dev.c')
| -rw-r--r-- | fs/char_dev.c | 4 |
1 files changed, 2 insertions, 2 deletions
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; } |