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scsi: xen-scsifront: add error handling for xenbus_printf
authorZhouyang Jia <jiazhouyang09@gmail.com>
Fri, 15 Jun 2018 17:05:01 +0000 (01:05 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 24 Aug 2018 11:26:54 +0000 (13:26 +0200)
commit7d082f109ec260ad0f13b9e77bd41b38d0c34326
treeefb551af34ec1560255e524919a4e4128fe7d074
parentd51ce9e03e6341a036b44e38d91adaf48c82ec9b
scsi: xen-scsifront: add error handling for xenbus_printf

[ Upstream commit 93efbd39870474cc536b9caf4a6efeb03b0bc56f ]

When xenbus_printf fails, the lack of error-handling code may
cause unexpected results.

This patch adds error-handling code after calling xenbus_printf.

Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/scsi/xen-scsifront.c