diff options
| author | Johan Hovold <johan@kernel.org> | 2018-08-22 11:03:19 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-27 16:13:01 +0100 |
| commit | 459852bfd6ed77449cbf0a7e7b650bf61dd96162 (patch) | |
| tree | ba5fcdda53f0ef92b8b94a1c86ae58949a25d503 /drivers/clk | |
| parent | 1e5ac60289f941a42cb6cedc381f1681320626c5 (diff) | |
clk: ti: fix OF child-node lookup
[ Upstream commit 00a461cc32ec27fa7bd9c874a7b36b0c6c542c12 ]
Fix child-node lookup which by using the wrong OF helper was searching
the whole tree depth-first, something which could end up matching an
unrelated node.
Also fix the related node-reference leaks.
Fixes: 5b385a45e001 ("clk: ti: add support for clkctrl aliases")
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/ti/clk.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c index 7d22e1af2247..27e0979b3158 100644 --- a/drivers/clk/ti/clk.c +++ b/drivers/clk/ti/clk.c @@ -129,7 +129,7 @@ int ti_clk_setup_ll_ops(struct ti_clk_ll_ops *ops) void __init ti_dt_clocks_register(struct ti_dt_clk oclks[]) { struct ti_dt_clk *c; - struct device_node *node; + struct device_node *node, *parent; struct clk *clk; struct of_phandle_args clkspec; char buf[64]; @@ -164,8 +164,12 @@ void __init ti_dt_clocks_register(struct ti_dt_clk oclks[]) continue; node = of_find_node_by_name(NULL, buf); - if (num_args) - node = of_find_node_by_name(node, "clk"); + if (num_args) { + parent = node; + node = of_get_child_by_name(parent, "clk"); + of_node_put(parent); + } + clkspec.np = node; clkspec.args_count = num_args; for (i = 0; i < num_args; i++) { @@ -173,11 +177,12 @@ void __init ti_dt_clocks_register(struct ti_dt_clk oclks[]) if (ret) { pr_warn("Bad tag in %s at %d: %s\n", c->node_name, i, tags[i]); + of_node_put(node); return; } } clk = of_clk_get_from_provider(&clkspec); - + of_node_put(node); if (!IS_ERR(clk)) { c->lk.clk = clk; clkdev_add(&c->lk); |