Wen Yang ac5f313624 coccinelle: semantic patch to check for inappropriate do_div() calls ... do_div() does a 64-by-32 division. When the divisor is unsigned long, u64, or s64, do_div() truncates it to 32 bits, this means it can test non-zero and be truncated to zero for division. This semantic patch is inspired by Mateusz Guzik's patch: commit b0ab99e773 ("sched: Fix possible divide by zero in avg_atom() calculation") Signed-off-by: Wen Yang <wenyang@linux.alibaba.com> Signed-off-by: Julia Lawall <julia.lawall@inria.fr> Cc: Gilles Muller <Gilles.Muller@lip6.fr> Cc: Nicolas Palix <nicolas.palix@imag.fr> Cc: Michal Marek <michal.lkml@markovi.net> Cc: Matthias Maennich <maennich@google.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: cocci@systeme.lip6.fr Cc: linux-kernel@vger.kernel.org		2021-09-11 22:57:39 +02:00
..
api	coccinelle: api: remove kobj_to_dev.cocci script	2021-06-21 20:45:49 +02:00
free	drop unneeded *s	2021-05-01 21:23:57 +02:00
iterators	coccinelle: iterators: Add for_each_child.cocci script	2020-10-15 22:28:10 +02:00
locks	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505	2019-06-19 17:11:22 +02:00
misc	coccinelle: semantic patch to check for inappropriate do_div() calls	2021-09-11 22:57:39 +02:00
null	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505	2019-06-19 17:11:22 +02:00
tests	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505	2019-06-19 17:11:22 +02:00