reset: hisilicon: fix potential NULL pointer dereference

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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>

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Gustavo A. R. Silva 2018-07-25 19:47:19 -05:00 • committed by Stephen Boyd

parent 0b85de7cef

commit e9a2310fb6

1 changed files with 2 additions and 3 deletions

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drivers/clk/hisilicon/reset.c

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