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(parent: 8cd9234) | patch
lib: Clarify the return value of strnlen_user()
authorJan Kara <jack@suse.cz>
Wed, 3 Jun 2015 13:50:35 +0000 (15:50 +0200)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 3 Jun 2015 15:00:22 +0000 (08:00 -0700)
commit226a07ef0a5a2dfad4cce1a5c226c4cb7370d41f
tree7b957c610ea1df9e099173ac29e84ef7ca6856b4tree | snapshot (tar.gz zip)
parent8cd9234c64c584432f6992fe944ca9e46ca8ea76commit | diff
lib: Clarify the return value of strnlen_user()

strnlen_user() can return a number in a range 0 to count +
sizeof(unsigned long) - 1. Clarify the comment at the top of the
function so that users don't think the function returns at most count+1.

Signed-off-by: Jan Kara <jack@suse.cz>
[ Also added commentary about preferably not using this function ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lib/strnlen_user.c diff | blob | blame | history