From: Qianfeng Rong <rongqianfeng@vivo.com>
Date: Wed, 3 Sep 2025 13:25:35 +0000 (+0800)
Subject: crypto: ccp - Use int type to store negative error codes
X-Git-Tag: v6.18-rc1~84^2~24
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e002780c14392373b26f73890ed88365e97c1cd4;p=thirdparty%2Fkernel%2Flinux.git

crypto: ccp - Use int type to store negative error codes

Change the 'ret' variable in __sev_do_cmd_locked() from unsigned int to
int, as it needs to store negative error codes.

No effect on runtime.

Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c
index 4f000dc2e639..6c116f6f9b79 100644
--- a/drivers/crypto/ccp/sev-dev.c
+++ b/drivers/crypto/ccp/sev-dev.c
@@ -848,9 +848,10 @@ static int __sev_do_cmd_locked(int cmd, void *data, int *psp_ret)
 	struct sev_device *sev;
 	unsigned int cmdbuff_hi, cmdbuff_lo;
 	unsigned int phys_lsb, phys_msb;
-	unsigned int reg, ret = 0;
+	unsigned int reg;
 	void *cmd_buf;
 	int buf_len;
+	int ret = 0;
 
 	if (!psp || !psp->sev_data)
 		return -ENODEV;