Wei Yongjun 3a2b9faaac pinctrl: nsp: Fix potential NULL dereference ...

[ Upstream commit c29e9da56b ]

platform_get_resource() may fail and return NULL, so we should
better check it's return value to avoid a NULL pointer dereference
a bit later in the code.

This is detected by Coccinelle semantic patch.

@@
expression pdev, res, n, t, e, e1, e2;
@@

res = platform_get_resource(pdev, t, n);
+ if (!res)
+   return -EINVAL;
... when != res == NULL
e = devm_ioremap_nocache(e1, res->start, e2);

Fixes: cc4fa83f66 ("pinctrl: nsp: add pinmux driver support for Broadcom NSP SoC")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-08-24 13:12:39 +02:00

..

Kconfig

pinctrl: bcm: add OF dependencies

2016-07-22 16:43:32 +02:00

Makefile

pinctrl: nsp: add pinmux driver support for Broadcom NSP SoC

2016-06-29 10:06:00 +02:00

pinctrl-bcm281xx.c

pinctrl: bcm281xx: constify pinctrl_ops and pinmux_ops structures

2016-09-07 22:41:30 +02:00

pinctrl-bcm2835.c

pinctrl: bcm2835: Use devm_pinctrl_register() for pinctrl registration

2016-04-21 00:01:56 +02:00

pinctrl-cygnus-mux.c

pinctrl: cygnus-mux: Use devm_pinctrl_register() for pinctrl registration

2016-04-21 00:02:00 +02:00

pinctrl-iproc-gpio.c

pinctrl: iproc: Fix iProc and NSP GPIO support

2016-10-31 21:25:15 +01:00

pinctrl-ns2-mux.c

pinctrl: ns2: constify pinctrl_ops and pinmux_ops structures

2016-09-07 22:39:44 +02:00

pinctrl-nsp-gpio.c

pinctrl: iproc: Fix iProc and NSP GPIO support

2016-10-31 21:25:15 +01:00

pinctrl-nsp-mux.c

pinctrl: nsp: Fix potential NULL dereference

2018-08-24 13:12:39 +02:00