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MIPS: Loongson: Fix potential NULL dereference in loongson3_platform_init() 

If kzalloc fails, it should return -ENOMEM, otherwise may trigger a NULL
pointer dereference.

Fixes: 3adeb2566b ("MIPS: Loongson: Improve LEFI firmware interface")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
This commit is contained in:
Tiezhu Yang 2020-01-10 09:30:42 +08:00 committed by Paul Burton
parent 23c25c7325
commit 72d052e28d
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1 changed files with 3 additions and 0 deletions
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3
arch/mips/loongson64/platform.c
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@ -27,6 +27,9 @@ static int __init loongson3_platform_init(void)
continue; continue;
pdev = kzalloc(sizeof(struct platform_device), GFP_KERNEL); pdev = kzalloc(sizeof(struct platform_device), GFP_KERNEL);
if (!pdev)
return -ENOMEM;
pdev->name = loongson_sysconf.sensors[i].name; pdev->name = loongson_sysconf.sensors[i].name;
pdev->id = loongson_sysconf.sensors[i].id; pdev->id = loongson_sysconf.sensors[i].id;
pdev->dev.platform_data = &loongson_sysconf.sensors[i]; pdev->dev.platform_data = &loongson_sysconf.sensors[i];