Patch "clk: sunxi-ng: Check kzalloc() for errors and cleanup error path" has been added to the 4.9-stable tree

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

clk: sunxi-ng: Check kzalloc() for errors and cleanup error path

to the 4.9-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-sunxi-ng-check-kzalloc-for-errors-and-cleanup-error-path.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Stephen Boyd <[email protected]>
Date: Sat, 7 Oct 2017 22:36:52 +0000
Subject: clk: sunxi-ng: Check kzalloc() for errors and cleanup error path

From: Stephen Boyd <[email protected]>

[ Upstream commit 5d806f9fc8e63d7a44e0fd1ef26a7c27efae0e51 ]

This kzalloc() could fail. Let's bail out with -ENOMEM here instead of NULL dereferencing. That silences static checkers. We should also cleanup on the error path even though this function returning an error probably means the system won't boot.

---
 drivers/clk/sunxi-ng/ccu_common.c |   15 +++++++++++++++
 1 file changed, 15 insertions(+)

@@ -70,6 +70,11 @@ int sunxi_ccu_probe(struct device_node *
 		goto err_clk_unreg;
 
 	reset = kzalloc(sizeof(*reset), GFP_KERNEL);
+	if (!reset) {
+		ret = -ENOMEM;
+		goto err_alloc_reset;
+	}
+
 	reset->rcdev.of_node = node;
 	reset->rcdev.ops = &ccu_reset_ops;
 	reset->rcdev.owner = THIS_MODULE;

@@ -85,6 +90,16 @@ int sunxi_ccu_probe(struct device_node *
 	return 0;
 
 err_of_clk_unreg:
+	kfree(reset);
+err_alloc_reset:
+	of_clk_del_provider(node);
 err_clk_unreg:
+	while (--i >= 0) {
+		struct clk_hw *hw = desc->hw_clks->hws[i];
+
+		if (!hw)
+			continue;
+		clk_hw_unregister(hw);
+	}
 	return ret;
 }

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/clk-sunxi-ng-check-kzalloc-for-errors-and-cleanup-error-path.patch