Xiubo Li 65b412cc67 regmap: fix possible ZERO_SIZE_PTR pointer dereferencing error. ... commit d6b41cb060 upstream. Since we cannot make sure the 'val_count' will always be none zero here, and then if it equals to zero, the kmemdup() will return ZERO_SIZE_PTR, which equals to ((void *)16). So this patch fix this with just doing the zero check before calling kmemdup(). Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Mark Brown <broonie@kernel.org> [lizf: Backported to 3.4: release mutex before returning EINVAL] Signed-off-by: Zefan Li <lizefan@huawei.com>		2015-02-02 17:04:44 +08:00
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internal.h
Kconfig
Makefile
regcache-lzo.c	The following text was taken from the original review request:	2012-03-24 10:41:37 -07:00
regcache-rbtree.c	regmap: cache Fix regcache-rbtree sync	2013-04-12 09:38:43 -07:00
regcache.c	regmap: Export regcache_sync_region()	2012-04-03 13:08:53 +01:00
regmap-debugfs.c	regmap: debugfs: fix possbile NULL pointer dereference	2015-02-02 17:04:44 +08:00
regmap-i2c.c
regmap-irq.c
regmap-spi.c
regmap.c	regmap: fix possible ZERO_SIZE_PTR pointer dereferencing error.	2015-02-02 17:04:44 +08:00