Patch "clk: at91: fix check of clk_register() returned value" has been added to the 4.4-stable tree

Patch "clk: at91: fix check of clk_register() returned value" has been added to the 4.4-stable tree

[gregkh]

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

    clk: at91: fix check of clk_register() returned value

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-at91-fix-check-of-clk_register-returned-value.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@vger.kernel.org> know about it.


>From cb0ceaf77d93964a0d00477c79f4499123f6159c Mon Sep 17 00:00:00 2001
From: Vladimir Zapolskiy <vz@mleia.com>
Date: Tue, 8 Mar 2016 01:41:29 +0200
Subject: clk: at91: fix check of clk_register() returned value

From: Vladimir Zapolskiy <vz@mleia.com>

commit cb0ceaf77d93964a0d00477c79f4499123f6159c upstream.

The clk_register() function returns a valid pointer to struct clk or
ERR_PTR() error code, this makes a check for returned NULL value
useless and may lead to oops on error path.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Fixes: bcc5fd49a0fd ("clk: at91: add a driver for the h32mx clock")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/clk/at91/clk-h32mx.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/clk/at91/clk-h32mx.c
+++ b/drivers/clk/at91/clk-h32mx.c
@@ -116,7 +116,7 @@ void __init of_sama5d4_clk_h32mx_setup(s
 	h32mxclk->pmc = pmc;
 
 	clk = clk_register(NULL, &h32mxclk->hw);
-	if (!clk) {
+	if (IS_ERR(clk)) {
 		kfree(h32mxclk);
 		return;
 	}


Patches currently in stable-queue which might be from vz@mleia.com are

queue-4.4/clk-at91-fix-check-of-clk_register-returned-value.patch