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authorTiezhu Yang <yangtiezhu@loongson.cn>2020-01-10 04:30:42 +0300
committerPaul Burton <paulburton@kernel.org>2020-01-11 01:10:24 +0300
commit72d052e28d1d2363f9107be63ef3a3afdea6143c (patch)
tree4ff25b6864f76dc173d62327ef11ab24c5e9779f /arch/mips/loongson64
parent23c25c73253075f41466438ed1b42ece9004ba20 (diff)
downloadlinux-72d052e28d1d2363f9107be63ef3a3afdea6143c.tar.xz
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: 3adeb2566b9b ("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
Diffstat (limited to 'arch/mips/loongson64')
-rw-r--r--arch/mips/loongson64/platform.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/mips/loongson64/platform.c b/arch/mips/loongson64/platform.c
index 13f3404f0030..9674ae1361a8 100644
--- a/arch/mips/loongson64/platform.c
+++ b/arch/mips/loongson64/platform.c
@@ -27,6 +27,9 @@ static int __init loongson3_platform_init(void)
continue;
pdev = kzalloc(sizeof(struct platform_device), GFP_KERNEL);
+ if (!pdev)
+ return -ENOMEM;
+
pdev->name = loongson_sysconf.sensors[i].name;
pdev->id = loongson_sysconf.sensors[i].id;
pdev->dev.platform_data = &loongson_sysconf.sensors[i];