Zhang Changzhong 0bc1c2d4a7 slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew() ...

[ Upstream commit 428bb00114 ]

platform_get_resource_byname() may fail and in this case a NULL
dereference will occur.

Fix it to use devm_platform_ioremap_resource_byname() instead of calling
platform_get_resource_byname() and devm_ioremap().

This is detected by Coccinelle semantic patch.

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

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

Fixes: ad7fcbc308 ("slimbus: qcom: Add Qualcomm Slimbus controller driver")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Link: https://lore.kernel.org/r/1607392473-20610-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-12-30 11:53:47 +01:00

..

core.c

slimbus: core: do not enter to clock pause mode in core

2020-09-25 14:41:50 +02:00

Kconfig

…

Makefile

…

messaging.c

…

qcom-ctrl.c

slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew()

2020-12-30 11:53:47 +01:00

qcom-ngd-ctrl.c

slimbus: qcom-ngd-ctrl: Avoid sending power requests without QMI

2020-12-30 11:53:24 +01:00

sched.c

…

slimbus.h

slimbus: Use the correct style for SPDX License Identifier

2020-01-14 21:46:47 +01:00

stream.c

…