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From: Dan Carpenter <error27@gmail.com>
To: Sage Weil <sage@newdream.net>
Cc: Yehuda Sadeh <yehuda@hq.newdream.net>,
	ceph-devel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] ceph: fix get_ticket_handler() error handling
Date: Thu, 26 Aug 2010 09:12:38 +0000	[thread overview]
Message-ID: <20100826091238.GB20072@bicker> (raw)

get_ticket_handler() returns a valid pointer or it returns
ERR_PTR(-ENOMEM) if kzalloc() fails.

Signed-off-by: Dan Carpenter <error27@gmail.com>

diff --git a/fs/ceph/auth_x.c b/fs/ceph/auth_x.c
index 582e0b2..a2d002c 100644
--- a/fs/ceph/auth_x.c
+++ b/fs/ceph/auth_x.c
@@ -376,7 +376,7 @@ static void ceph_x_validate_tickets(struct ceph_auth_client *ac, int *pneed)
 
 		th = get_ticket_handler(ac, service);
 
-		if (!th) {
+		if (IS_ERR(th)) {
 			*pneed |= service;
 			continue;
 		}
@@ -399,6 +399,9 @@ static int ceph_x_build_request(struct ceph_auth_client *ac,
 	struct ceph_x_ticket_handler *th  		get_ticket_handler(ac, CEPH_ENTITY_TYPE_AUTH);
 
+	if (IS_ERR(th))
+		return PTR_ERR(th);
+
 	ceph_x_validate_tickets(ac, &need);
 
 	dout("build_request want %x have %x need %x\n",
@@ -450,7 +453,6 @@ static int ceph_x_build_request(struct ceph_auth_client *ac,
 			return -ERANGE;
 		head->op = cpu_to_le16(CEPHX_GET_PRINCIPAL_SESSION_KEY);
 
-		BUG_ON(!th);
 		ret = ceph_x_build_authorizer(ac, th, &xi->auth_authorizer);
 		if (ret)
 			return ret;
@@ -505,7 +507,8 @@ static int ceph_x_handle_reply(struct ceph_auth_client *ac, int result,
 
 	case CEPHX_GET_PRINCIPAL_SESSION_KEY:
 		th = get_ticket_handler(ac, CEPH_ENTITY_TYPE_AUTH);
-		BUG_ON(!th);
+		if (IS_ERR(th))
+			return PTR_ERR(th);
 		ret = ceph_x_proc_ticket_reply(ac, &th->session_key,
 					       buf + sizeof(*head), end);
 		break;
@@ -563,8 +566,8 @@ static int ceph_x_verify_authorizer_reply(struct ceph_auth_client *ac,
 	void *end = p + sizeof(au->reply_buf);
 
 	th = get_ticket_handler(ac, au->service);
-	if (!th)
-		return -EIO;  /* hrm! */
+	if (IS_ERR(th))
+		return PTR_ERR(th);
 	ret = ceph_x_decrypt(&th->session_key, &p, end, &reply, sizeof(reply));
 	if (ret < 0)
 		return ret;
@@ -626,7 +629,7 @@ static void ceph_x_invalidate_authorizer(struct ceph_auth_client *ac,
 	struct ceph_x_ticket_handler *th;
 
 	th = get_ticket_handler(ac, peer_type);
-	if (th && !IS_ERR(th))
+	if (!IS_ERR(th))
 		remove_ticket_handler(ac, th);
 }
 

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <error27@gmail.com>
To: Sage Weil <sage@newdream.net>
Cc: Yehuda Sadeh <yehuda@hq.newdream.net>,
	ceph-devel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] ceph: fix get_ticket_handler() error handling
Date: Thu, 26 Aug 2010 11:12:38 +0200	[thread overview]
Message-ID: <20100826091238.GB20072@bicker> (raw)

get_ticket_handler() returns a valid pointer or it returns
ERR_PTR(-ENOMEM) if kzalloc() fails.

Signed-off-by: Dan Carpenter <error27@gmail.com>

diff --git a/fs/ceph/auth_x.c b/fs/ceph/auth_x.c
index 582e0b2..a2d002c 100644
--- a/fs/ceph/auth_x.c
+++ b/fs/ceph/auth_x.c
@@ -376,7 +376,7 @@ static void ceph_x_validate_tickets(struct ceph_auth_client *ac, int *pneed)
 
 		th = get_ticket_handler(ac, service);
 
-		if (!th) {
+		if (IS_ERR(th)) {
 			*pneed |= service;
 			continue;
 		}
@@ -399,6 +399,9 @@ static int ceph_x_build_request(struct ceph_auth_client *ac,
 	struct ceph_x_ticket_handler *th =
 		get_ticket_handler(ac, CEPH_ENTITY_TYPE_AUTH);
 
+	if (IS_ERR(th))
+		return PTR_ERR(th);
+
 	ceph_x_validate_tickets(ac, &need);
 
 	dout("build_request want %x have %x need %x\n",
@@ -450,7 +453,6 @@ static int ceph_x_build_request(struct ceph_auth_client *ac,
 			return -ERANGE;
 		head->op = cpu_to_le16(CEPHX_GET_PRINCIPAL_SESSION_KEY);
 
-		BUG_ON(!th);
 		ret = ceph_x_build_authorizer(ac, th, &xi->auth_authorizer);
 		if (ret)
 			return ret;
@@ -505,7 +507,8 @@ static int ceph_x_handle_reply(struct ceph_auth_client *ac, int result,
 
 	case CEPHX_GET_PRINCIPAL_SESSION_KEY:
 		th = get_ticket_handler(ac, CEPH_ENTITY_TYPE_AUTH);
-		BUG_ON(!th);
+		if (IS_ERR(th))
+			return PTR_ERR(th);
 		ret = ceph_x_proc_ticket_reply(ac, &th->session_key,
 					       buf + sizeof(*head), end);
 		break;
@@ -563,8 +566,8 @@ static int ceph_x_verify_authorizer_reply(struct ceph_auth_client *ac,
 	void *end = p + sizeof(au->reply_buf);
 
 	th = get_ticket_handler(ac, au->service);
-	if (!th)
-		return -EIO;  /* hrm! */
+	if (IS_ERR(th))
+		return PTR_ERR(th);
 	ret = ceph_x_decrypt(&th->session_key, &p, end, &reply, sizeof(reply));
 	if (ret < 0)
 		return ret;
@@ -626,7 +629,7 @@ static void ceph_x_invalidate_authorizer(struct ceph_auth_client *ac,
 	struct ceph_x_ticket_handler *th;
 
 	th = get_ticket_handler(ac, peer_type);
-	if (th && !IS_ERR(th))
+	if (!IS_ERR(th))
 		remove_ticket_handler(ac, th);
 }
 

             reply	other threads:[~2010-08-26  9:12 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-26  9:12 Dan Carpenter [this message]
2010-08-26  9:12 ` [patch] ceph: fix get_ticket_handler() error handling Dan Carpenter
2010-08-26 16:30 ` Sage Weil
2010-08-26 16:30   ` Sage Weil

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