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| author | Nikanth Karthikesan <knikanth@suse.de> | 2009-09-23 15:57:09 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-24 07:21:03 -0700 |
| commit | bb521c5de070b86a1e049e2dbf62328f717ff1e8 (patch) | |
| tree | e2a4416f35e84873f75c0e86ebae5552cf4ae2b2 /drivers/char/tty_buffer.c | |
| parent | 0b8c78f2bfa6ebed0f47794b5995a0d4b3fe456d (diff) | |
| download | linux-bb521c5de070b86a1e049e2dbf62328f717ff1e8.tar.gz linux-bb521c5de070b86a1e049e2dbf62328f717ff1e8.tar.bz2 linux-bb521c5de070b86a1e049e2dbf62328f717ff1e8.zip | |
/dev/zero: avoid repeated access_ok() checks
In read_zero, we check for access_ok() once for the count bytes. It is
unnecessarily checked again in clear_user. Use __clear_user, which does
not check for access_ok().
Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/tty_buffer.c')
0 files changed, 0 insertions, 0 deletions