4.18-stable review patch. If anyone has any objections, please let me know.
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From: Mikko Perttunen mperttunen@nvidia.com
[ Upstream commit 365f7a89c881e84f1ebc925f65f899d5d7ce547e ]
Patch "clk: core: Copy connection id" made it so that the connector id 'con_id' is kstrdup_const()ed to cater to drivers that pass non-constant connection ids. The patch added the corresponding kfree_const to __clk_free_clk(), but struct clk's can be freed also via __clk_put(). Add the kfree_const call to __clk_put() and add comments to both functions to remind that the logic in them should be kept in sync.
Fixes: 253160a8ad06 ("clk: core: Copy connection id") Signed-off-by: Mikko Perttunen mperttunen@nvidia.com Reviewed-by: Leonard Crestez leonard.crestez@nxp.com Signed-off-by: Stephen Boyd sboyd@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/clk/clk.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -2933,6 +2933,7 @@ struct clk *__clk_create_clk(struct clk_ return clk; }
+/* keep in sync with __clk_put */ void __clk_free_clk(struct clk *clk) { clk_prepare_lock(); @@ -3312,6 +3313,7 @@ int __clk_get(struct clk *clk) return 1; }
+/* keep in sync with __clk_free_clk */ void __clk_put(struct clk *clk) { struct module *owner; @@ -3345,6 +3347,7 @@ void __clk_put(struct clk *clk)
module_put(owner);
+ kfree_const(clk->con_id); kfree(clk); }