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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2022-06-20 20:18:15 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-02-01 10:23:27 +0300
commit19f1f99be3716cc08071e25ba159813318ab0d9e (patch)
treee042bcab21ba6141d3b86d02cd60f4e51c9eabb2
parentf84c9b72fb200633774704d8020f769c88a4b249 (diff)
downloadlinux-19f1f99be3716cc08071e25ba159813318ab0d9e.tar.xz
clk: Fix pointer casting to prevent oops in devm_clk_release()
commit 8b3d743fc9e2542822826890b482afabf0e7522a upstream. 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@samsung.com> Fixes: abae8e57e49a ("clk: generalize devm_clk_get() a bit") Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20220620171815.114212-1-u.kleine-koenig@pengutronix.de Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Linux Kernel Functional Testing <lkft@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/clk/clk-devres.c2
1 files changed, 1 insertions, 1 deletions
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);