From f6e7ac4c35a28aef0be93b32c533ae678ad0b9e7 Mon Sep 17 00:00:00 2001
From: Feng Jiang <jiangfeng@kylinos.cn>
Date: Wed, 12 Apr 2023 17:37:34 +0800
Subject: [PATCH] platform/x86/amd: pmc: Fix memory leak in amd_pmc_stb_debugfs_open_v2()
Git-commit: f6e7ac4c35a28aef0be93b32c533ae678ad0b9e7
Patch-mainline: v6.4-rc1
References: bsc#1210644
Function amd_pmc_stb_debugfs_open_v2() may be called when the STB
debug mechanism enabled.
When amd_pmc_send_cmd() fails, the 'buf' needs to be released.
Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn>
Link: https://lore.kernel.org/r/20230412093734.1126410-1-jiangfeng@kylinos.cn
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/platform/x86/amd/pmc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/platform/x86/amd/pmc.c b/drivers/platform/x86/amd/pmc.c
index 877b629e5cae..14d3ff425300 100644
--- a/drivers/platform/x86/amd/pmc.c
+++ b/drivers/platform/x86/amd/pmc.c
@@ -265,6 +265,7 @@ static int amd_pmc_stb_debugfs_open_v2(struct inode *inode, struct file *filp)
dev->msg_port = 0;
if (ret) {
dev_err(dev->dev, "error: S2D_NUM_SAMPLES not supported : %d\n", ret);
+ kfree(buf);
return ret;
}
--
2.35.3