Patch "clk: ti: clkctrl: check return value of kasprintf()" has been added to the 5.15-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

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

    clk: ti: clkctrl: check return value of kasprintf()

to the 5.15-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-ti-clkctrl-check-return-value-of-kasprintf.patch
and it can be found in the queue-5.15 subdirectory.

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



commit 3a1aca8ce860e5131ca3b6cbf866d9db13502a35
Author: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
Date:   Tue May 30 12:39:12 2023 +0300

    clk: ti: clkctrl: check return value of kasprintf()
    
    [ Upstream commit bd46cd0b802d9c9576ca78007aa084ae3e74907b ]
    
    kasprintf() returns a pointer to dynamically allocated memory.
    Pointer could be NULL in case allocation fails. Check pointer validity.
    Identified with coccinelle (kmerr.cocci script).
    
    Fixes: 852049594b9a ("clk: ti: clkctrl: convert subclocks to use proper names also")
    Fixes: 6c3090520554 ("clk: ti: clkctrl: Fix hidden dependency to node name")
    Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20230530093913.1656095-8-claudiu.beznea@xxxxxxxxxxxxx
    Reviewed-by: Tony Lindgren <tony@xxxxxxxxxxx>
    Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/clk/ti/clkctrl.c b/drivers/clk/ti/clkctrl.c
index 864c484bde1b4..157abc46dcf44 100644
--- a/drivers/clk/ti/clkctrl.c
+++ b/drivers/clk/ti/clkctrl.c
@@ -267,6 +267,9 @@ static const char * __init clkctrl_get_clock_name(struct device_node *np,
 	if (clkctrl_name && !legacy_naming) {
 		clock_name = kasprintf(GFP_KERNEL, "%s-clkctrl:%04x:%d",
 				       clkctrl_name, offset, index);
+		if (!clock_name)
+			return NULL;
+
 		strreplace(clock_name, '_', '-');
 
 		return clock_name;
@@ -598,6 +601,10 @@ static void __init _ti_omap4_clkctrl_setup(struct device_node *node)
 	if (clkctrl_name) {
 		provider->clkdm_name = kasprintf(GFP_KERNEL,
 						 "%s_clkdm", clkctrl_name);
+		if (!provider->clkdm_name) {
+			kfree(provider);
+			return;
+		}
 		goto clkdm_found;
 	}