Jerome Marchand 17ec4cd985 zram: don't call idr_remove() from zram_remove() ... The use of idr_remove() is forbidden in the callback functions of idr_for_each(). It is therefore unsafe to call idr_remove in zram_remove(). This patch moves the call to idr_remove() from zram_remove() to hot_remove_store(). In the detroy_devices() path, idrs are removed by idr_destroy(). This solves an use-after-free detected by KASan. [akpm@linux-foundation.org: fix coding stype, per Sergey] Signed-off-by: Jerome Marchand <jmarchan@redhat.com> Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Minchan Kim <minchan@kernel.org> Cc: <stable@vger.kernel.org> [4.2+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2016-01-15 17:56:32 -08:00
..
Kconfig	zram: remove obsolete ZRAM_DEBUG option	2015-06-25 17:00:35 -07:00
Makefile	zram: add lz4 algorithm backend	2014-04-07 16:36:01 -07:00
zcomp.c	zram: pass gfp from zcomp frontend to backend	2016-01-15 11:40:51 -08:00
zcomp.h	zram: pass gfp from zcomp frontend to backend	2016-01-15 11:40:51 -08:00
zcomp_lz4.c	zram/zcomp: do not zero out zcomp private pages	2016-01-15 11:40:52 -08:00
zcomp_lz4.h	zram: add lz4 algorithm backend	2014-04-07 16:36:01 -07:00
zcomp_lzo.c	zram/zcomp: do not zero out zcomp private pages	2016-01-15 11:40:52 -08:00
zcomp_lzo.h	zram: introduce compressing backend abstraction	2014-04-07 16:36:01 -07:00
zram_drv.c	zram: don't call idr_remove() from zram_remove()	2016-01-15 17:56:32 -08:00
zram_drv.h	zsmalloc/zram: introduce zs_pool_stats api	2015-09-08 15:35:28 -07:00