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3 Commits

Author SHA1 Message Date
Gustavo A. R. Silva
e9a2310fb6 reset: hisilicon: fix potential NULL pointer dereference 
There is a potential execution path in which function
platform_get_resource() returns NULL. If this happens,
we will end up having a NULL pointer dereference.

Fix this by replacing devm_ioremap with devm_ioremap_resource,
which has the NULL check and the memory region request.

This code was detected with the help of Coccinelle.

Cc: stable@vger.kernel.org
Fixes: 97b7129cd2 ("reset: hisilicon: change the definition of hisi_reset_init")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2018-08-31 10:37:00 -07:00
Jiancheng Xue
97b7129cd2 reset: hisilicon: change the definition of hisi_reset_init 
Change the input arguments type to struct platform_device pointer.

Signed-off-by: Jiancheng Xue <xuejiancheng@hisilicon.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
 2016-06-30 12:33:22 -07:00
Jiancheng Xue
25824d52ca reset: hisilicon: add reset controller driver for hisilicon SOCs 
In most of hisilicon SOCs, reset controller and clock provider are
combined together as a block named CRG (Clock and Reset Generator).
This patch mainly implements the reset function.

Signed-off-by: Jiancheng Xue <xuejiancheng@hisilicon.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
 2016-05-06 11:13:29 -07:00