mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-22 02:20:40 +00:00
memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe()
[ Upstream commit4bfa07300b
] 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. Fixes:911a888297
("memory: jz4780-nemc: driver for the NEMC on JZ4780 SoCs") Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com> Acked-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/1607070717-32880-1-git-send-email-zhangchangzhong@huawei.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
parent
20d79c2a54
commit
d7af811f2e
1 changed files with 2 additions and 0 deletions
|
@ -291,6 +291,8 @@ static int jz4780_nemc_probe(struct platform_device *pdev)
|
|||
nemc->dev = dev;
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
if (!res)
|
||||
return -EINVAL;
|
||||
|
||||
/*
|
||||
* The driver currently only uses the registers up to offset
|
||||
|
|
Loading…
Reference in a new issue