Patch "libceph: fix return value check in alloc_msg_with_page_vector()" has been added to the 4.7-stable tree

Patch "libceph: fix return value check in alloc_msg_with_page_vector()" has been added to the 4.7-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    libceph: fix return value check in alloc_msg_with_page_vector()

to the 4.7-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     libceph-fix-return-value-check-in-alloc_msg_with_page_vector.patch
and it can be found in the queue-4.7 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From c22e853a2ed19321d00c1eae339ffdc4f5e7757e Mon Sep 17 00:00:00 2001
From: Wei Yongjun <weiyj.lk@gmail.com>
Date: Sat, 30 Jul 2016 00:37:57 +0000
Subject: libceph: fix return value check in alloc_msg_with_page_vector()

From: Wei Yongjun <weiyj.lk@gmail.com>

commit c22e853a2ed19321d00c1eae339ffdc4f5e7757e upstream.

In case of error, the function ceph_alloc_page_vector() returns
ERR_PTR() and never returns NULL. The NULL test in the return value
check should be replaced with IS_ERR().

Fixes: 1907920324f1 ('libceph: support for sending notifies')
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 net/ceph/osd_client.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -4187,7 +4187,7 @@ static struct ceph_msg *alloc_msg_with_p
 
 		pages = ceph_alloc_page_vector(calc_pages_for(0, data_len),
 					       GFP_NOIO);
-		if (!pages) {
+		if (IS_ERR(pages)) {
 			ceph_msg_put(m);
 			return NULL;
 		}


Patches currently in stable-queue which might be from weiyj.lk@gmail.com are

queue-4.7/power_supply-tps65217-charger-fix-missing-platform_set_drvdata.patch
queue-4.7/libceph-fix-return-value-check-in-alloc_msg_with_page_vector.patch