netdev - [PATCH -next] UNRPC: Return specific error code on kmalloc failure

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Message-Id: <1631266404-29698-1-git-send-email-yang.lee@linux.alibaba.com>
Date:   Fri, 10 Sep 2021 17:33:24 +0800
From:   Yang Li <yang.lee@...ux.alibaba.com>
To:     kuba@...nel.org
Cc:     davem@...emloft.net, anna.schumaker@...app.com,
        trond.myklebust@...merspace.com, chuck.lever@...cle.com,
        bfields@...ldses.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Yang Li <yang.lee@...ux.alibaba.com>
Subject: [PATCH -next] UNRPC: Return specific error code on kmalloc failure

Although the callers of this function only care about whether the
return value is null or not, we should still give a rigorous
error code.

Smatch tool warning:
net/sunrpc/auth_gss/svcauth_gss.c:784 gss_write_verf() warn: returning
-1 instead of -ENOMEM is sloppy

No functional change, just more standardized.

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@...ux.alibaba.com>
---
 net/sunrpc/auth_gss/svcauth_gss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index 3e776e3..7dba6a9 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -781,7 +781,7 @@ static inline u32 round_up_to_quad(u32 i)
 	svc_putnl(rqstp->rq_res.head, RPC_AUTH_GSS);
 	xdr_seq = kmalloc(4, GFP_KERNEL);
 	if (!xdr_seq)
-		return -1;
+		return -ENOMEM;
 	*xdr_seq = htonl(seq);
 
 	iov.iov_base = xdr_seq;
-- 
1.8.3.1