[RFC v2 05/10] pseries/papr-hvpipe: Simplify spin unlock usage in papr_hvpipe_handle_release()

["Ritesh Harjani (IBM)" <ritesh.list@gmail.com>]

Once the src_info is removed from the global list, no one can access it.
This simplies the usage of spin_unlock_irqrestore() in
papr_hvpipe_handle_release()

Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
---
 arch/powerpc/platforms/pseries/papr-hvpipe.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/papr-hvpipe.c b/arch/powerpc/platforms/pseries/papr-hvpipe.c
index 5c773a6f0efc..7d05d6dcdb79 100644
--- a/arch/powerpc/platforms/pseries/papr-hvpipe.c
+++ b/arch/powerpc/platforms/pseries/papr-hvpipe.c
@@ -460,6 +460,7 @@ static int papr_hvpipe_handle_release(struct inode *inode,
 	src_info = file->private_data;
 	list_del(&src_info->list);
 	file->private_data = NULL;
+	spin_unlock_irqrestore(&hvpipe_src_list_lock, flags);
 	/*
 	 * If the pipe for this specific source has any pending
 	 * payload, issue recv HVPIPE RTAS so that pipe will not
@@ -467,10 +468,8 @@ static int papr_hvpipe_handle_release(struct inode *inode,
 	 */
 	if (src_info->hvpipe_status & HVPIPE_MSG_AVAILABLE) {
 		src_info->hvpipe_status = 0;
-		spin_unlock_irqrestore(&hvpipe_src_list_lock, flags);
 		hvpipe_rtas_recv_msg(NULL, 0);
-	} else
-		spin_unlock_irqrestore(&hvpipe_src_list_lock, flags);
+	}
 
 	kfree(src_info);
 	return 0;
-- 
2.39.5