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Date:   Tue, 15 Jan 2019 19:22:38 +0000
From:   Pavel Shilovskiy <>
To:     Greg Kroah-Hartman <>,
        "" <>
CC:     "" <>,
        Jeff Layton <>,
        Steven French <>
Subject: RE: [PATCH 4.20 14/57] CIFS: Do not hide EINTR after sending network

Hi Greg,

I am wondering if it is possible to include exact stable kernel version (e.g. 4.20.3 in this case) in the email. This would help to quickly understand which kernel version should be installed in order to get the fix.

Best regards,
Pavel Shilovsky

-----Original Message-----
From: Greg Kroah-Hartman <> 
Sent: Tuesday, January 15, 2019 8:36 AM
Cc: Greg Kroah-Hartman <>;; Pavel Shilovskiy <>; Jeff Layton <>; Steven French <>
Subject: [PATCH 4.20 14/57] CIFS: Do not hide EINTR after sending network packets

4.20-stable review patch.  If anyone has any objections, please let me know.


From: Pavel Shilovsky <>

commit ee13919c2e8d1f904e035ad4b4239029a8994131 upstream.

Currently we hide EINTR code returned from sock_sendmsg() and return 0 instead. This makes a caller think that we successfully completed the network operation which is not true. Fix this by properly returning EINTR to callers.

Cc: <>
Signed-off-by: Pavel Shilovsky <>
Reviewed-by: Jeff Layton <>
Signed-off-by: Steve French <>
Signed-off-by: Greg Kroah-Hartman <>

 fs/cifs/transport.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -385,7 +385,7 @@ smbd_done:
 	if (rc < 0 && rc != -EINTR)
 		cifs_dbg(VFS, "Error %d sending data on socket to server\n",
-	else
+	else if (rc > 0)
 		rc = 0;
 	return rc;

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