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(parent: 8a68dfa) | patch
chardev: add additional check for minor range overlap
authorChengguang Xu <cgxu519@gmx.com>
Fri, 15 Feb 2019 12:27:11 +0000 (20:27 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 31 May 2019 13:45:13 +0000 (06:45 -0700)
commitd682ebd67d88b3c8c9ee7b3235f7c964009653c4
tree3283956db7e0c37a62587840eb0fa3c69cd6597etree | snapshot
parent8a68dfa400bc3e0d690a0338166a7cad508397d0commit | diff
chardev: add additional check for minor range overlap

[ Upstream commit de36e16d1557a0b6eb328bc3516359a12ba5c25c ]

Current overlap checking cannot correctly handle
a case which is baseminor < existing baseminor &&
baseminor + minorct > existing baseminor + minorct.

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
fs/char_dev.c diff | blob | history
wrapfs-5.0.y