Patch "powerpc/6xx: add missing of_node_put" has been added to the 5.10-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

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

    powerpc/6xx: add missing of_node_put

to the 5.10-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:
     powerpc-6xx-add-missing-of_node_put.patch
and it can be found in the queue-5.10 subdirectory.

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



commit f9b89b4626fe2ee2bb5bd076cc471fcb9b2aacb4
Author: Julia Lawall <Julia.Lawall@xxxxxxx>
Date:   Fri Nov 20 20:33:19 2015 +0000

    powerpc/6xx: add missing of_node_put
    
    [ Upstream commit f6e82647ff71d427d4148964b71f239fba9d7937 ]
    
    for_each_compatible_node performs an of_node_get on each iteration, so
    a break out of the loop requires an of_node_put.
    
    A simplified version of the semantic patch that fixes this problem is as
    follows (http://coccinelle.lip6.fr):
    
    // <smpl>
    @@
    expression e;
    local idexpression n;
    @@
    
    @@
    local idexpression n;
    expression e;
    @@
    
     for_each_compatible_node(n,...) {
       ...
    (
       of_node_put(n);
    |
       e = n
    |
    +  of_node_put(n);
    ?  break;
    )
       ...
     }
    ... when != n
    // </smpl>
    
    Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>
    Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
    Link: https://lore.kernel.org/r/1448051604-25256-2-git-send-email-Julia.Lawall@xxxxxxx
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
index a1b7f79a8a152..de10c13de15c6 100644
--- a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
@@ -215,6 +215,7 @@ void hlwd_pic_probe(void)
 			irq_set_chained_handler(cascade_virq,
 						hlwd_pic_irq_cascade);
 			hlwd_irq_host = host;
+			of_node_put(np);
 			break;
 		}
 	}