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authorLiang He <windhl@126.com>2022-09-15 11:11:21 +0800
committerStephen Boyd <sboyd@kernel.org>2022-09-30 17:14:32 -0700
commit058a3996b888ab60eb1857fb4fd28f1b89a9a95a (patch)
tree865dca4d5001f1ec46f92565b0d4875ee48028b7 /drivers/clk
parent4e343bafe03ff68a62f48f8235cf98f2c685468b (diff)
clk: ti: Balance of_node_get() calls for of_find_node_by_name()
In ti_find_clock_provider(), of_find_node_by_name() will call of_node_put() for the 'from' argument, possibly putting the node one too many times. Let's maintain the of_node_get() from the previous search and only put when we're exiting the function early. This should avoid a misbalanced reference count on the node. Fixes: 51f661ef9a10 ("clk: ti: Add ti_find_clock_provider() to use clock-output-names") Signed-off-by: Liang He <windhl@126.com> Link: https://lore.kernel.org/r/20220915031121.4003589-1-windhl@126.com [sboyd@kernel.org: Rewrite commit text, maintain reference instead of get again] Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/ti/clk.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index ef2a445c63a3..a99279265e40 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -139,11 +139,12 @@ static struct device_node *ti_find_clock_provider(struct device_node *from,
break;
}
}
- of_node_put(from);
kfree(tmp);
- if (found)
+ if (found) {
+ of_node_put(from);
return np;
+ }
/* Fall back to using old node name base provider name */
return of_find_node_by_name(from, name);