Patch "clk: samsung: Fix memory leak in _samsung_clk_register_pll()" has been added to the 5.4-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

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

    clk: samsung: Fix memory leak in _samsung_clk_register_pll()

to the 5.4-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-samsung-fix-memory-leak-in-_samsung_clk_register.patch
and it can be found in the queue-5.4 subdirectory.

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



commit 92777dee35835f202c5d46a172b3568d564e7d78
Author: Xiu Jianfeng <xiujianfeng@xxxxxxxxxx>
Date:   Wed Nov 23 11:20:15 2022 +0800

    clk: samsung: Fix memory leak in _samsung_clk_register_pll()
    
    [ Upstream commit 5174e5b0d1b669a489524192b6adcbb3c54ebc72 ]
    
    If clk_register() fails, @pll->rate_table may have allocated memory by
    kmemdup(), so it needs to be freed, otherwise will cause memory leak
    issue, this patch fixes it.
    
    Fixes: 3ff6e0d8d64d ("clk: samsung: Add support to register rate_table for samsung plls")
    Signed-off-by: Xiu Jianfeng <xiujianfeng@xxxxxxxxxx>
    Link: https://lore.kernel.org/r/20221123032015.63980-1-xiujianfeng@xxxxxxxxxx
    Reviewed-by: Alim Akhtar <alim.akhtar@xxxxxxxxxxx>
    Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c
index ac70ad785d8e..33df20f813d5 100644
--- a/drivers/clk/samsung/clk-pll.c
+++ b/drivers/clk/samsung/clk-pll.c
@@ -1390,6 +1390,7 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx,
 	if (ret) {
 		pr_err("%s: failed to register pll clock %s : %d\n",
 			__func__, pll_clk->name, ret);
+		kfree(pll->rate_table);
 		kfree(pll);
 		return;
 	}