Patch "clk: clk-atlas6: fix return value check in atlas6_clk_init()" has been added to the 4.4-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

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

    clk: clk-atlas6: fix return value check in atlas6_clk_init()

to the 4.4-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:
     clk-clk-atlas6-fix-return-value-check-in-atlas6_clk_.patch
and it can be found in the queue-4.4 subdirectory.

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



commit 44b575a38fd5e6cf44f3f0938c8bbfce4003cb34
Author: Xu Wang <vulab@xxxxxxxxxxx>
Date:   Mon Jul 13 03:21:43 2020 +0000

    clk: clk-atlas6: fix return value check in atlas6_clk_init()
    
    [ Upstream commit 12b90b40854a8461a02ef19f6f4474cc88d64b66 ]
    
    In case of error, the function clk_register() returns ERR_PTR()
    and never returns NULL. The NULL test in the return value check
    should be replaced with IS_ERR().
    
    Signed-off-by: Xu Wang <vulab@xxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20200713032143.21362-1-vulab@xxxxxxxxxxx
    Acked-by: Barry Song <baohua@xxxxxxxxxx>
    Fixes: 7bf21bc81f28 ("clk: sirf: re-arch to make the codes support both prima2 and atlas6")
    Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/clk/sirf/clk-atlas6.c b/drivers/clk/sirf/clk-atlas6.c
index c5eaa9d162476..9af2d0dcd6a0f 100644
--- a/drivers/clk/sirf/clk-atlas6.c
+++ b/drivers/clk/sirf/clk-atlas6.c
@@ -137,7 +137,7 @@ static void __init atlas6_clk_init(struct device_node *np)
 
 	for (i = pll1; i < maxclk; i++) {
 		atlas6_clks[i] = clk_register(NULL, atlas6_clk_hw_array[i]);
-		BUG_ON(!atlas6_clks[i]);
+		BUG_ON(IS_ERR(atlas6_clks[i]));
 	}
 	clk_register_clkdev(atlas6_clks[cpu], NULL, "cpu");
 	clk_register_clkdev(atlas6_clks[io],  NULL, "io");