This is a note to let you know that I've just added the patch titled
clk: Fix pointer casting to prevent oops in devm_clk_release()
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-fix-pointer-casting-to-prevent-oops-in-devm_clk_.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 dedd4c73a5ef43ee1019e5e734fdd794c338f15d
Author: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Date: Mon Jun 20 19:18:15 2022 +0200
clk: Fix pointer casting to prevent oops in devm_clk_release()
[ Upstream commit 8b3d743fc9e2542822826890b482afabf0e7522a ]
The release function is called with a pointer to the memory returned by
devres_alloc(). I was confused about that by the code before the
generalization that used a struct clk **ptr.
Reported-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Fixes: abae8e57e49a ("clk: generalize devm_clk_get() a bit")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220620171815.114212-1-u.kleine-koenig@xxxxxxxxxxxxxx
Tested-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Tested-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/clk/clk-devres.c b/drivers/clk/clk-devres.c
index 43ccd20e0298..4fb4fd4b06bd 100644
--- a/drivers/clk/clk-devres.c
+++ b/drivers/clk/clk-devres.c
@@ -11,7 +11,7 @@ struct devm_clk_state {
static void devm_clk_release(struct device *dev, void *res)
{
- struct devm_clk_state *state = *(struct devm_clk_state **)res;
+ struct devm_clk_state *state = res;
if (state->exit)
state->exit(state->clk);
