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authorMikko Perttunen <mperttunen@nvidia.com>2018-07-11 11:21:04 +0300
committerStephen Boyd <sboyd@kernel.org>2018-07-25 19:29:12 +0300
commit365f7a89c881e84f1ebc925f65f899d5d7ce547e (patch)
treeedfa2054bf9004cca73a8d39df895fdb32247ea4 /drivers/clk/clk.c
parentce397d215ccd07b8ae3f71db689aedb85d56ab40 (diff)
downloadlinux-365f7a89c881e84f1ebc925f65f899d5d7ce547e.tar.xz
clk: core: Potentially free connection id
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>
Diffstat (limited to 'drivers/clk/clk.c')
-rw-r--r--drivers/clk/clk.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 9760b526ca31..eeec6885c302 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -2934,6 +2934,7 @@ struct clk *__clk_create_clk(struct clk_hw *hw, const char *dev_id,
return clk;
}
+/* keep in sync with __clk_put */
void __clk_free_clk(struct clk *clk)
{
clk_prepare_lock();
@@ -3313,6 +3314,7 @@ int __clk_get(struct clk *clk)
return 1;
}
+/* keep in sync with __clk_free_clk */
void __clk_put(struct clk *clk)
{
struct module *owner;
@@ -3346,6 +3348,7 @@ void __clk_put(struct clk *clk)
module_put(owner);
+ kfree_const(clk->con_id);
kfree(clk);
}