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clk: ti: Fix memleak in ti_fapll_synth_setup

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If clk_register fails, we should goto free branch
before function returns to prevent memleak.

Fixes: 163152cbbe ("clk: ti: Add support for FAPLL on dm816x")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20201113131623.2098222-1-zhangqilong3@huawei.com
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Zhang Qilong 2020-11-13 21:16:23 +08:00 • committed by Stephen Boyd
parent 3650b228f8
commit 8c6239f6e9
1 changed files with 9 additions and 2 deletions
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11
drivers/clk/ti/fapll.c
View file

@ -498,6 +498,7 @@ static struct clk * __init ti_fapll_synth_setup(struct fapll_data *fd,
{ {
struct clk_init_data *init; struct clk_init_data *init;
struct fapll_synth *synth; struct fapll_synth *synth;
struct clk *clk = ERR_PTR(-ENOMEM);
init = kzalloc(sizeof(*init), GFP_KERNEL); init = kzalloc(sizeof(*init), GFP_KERNEL);
if (!init) if (!init)
@ -520,13 +521,19 @@ static struct clk * __init ti_fapll_synth_setup(struct fapll_data *fd,
synth->hw.init = init; synth->hw.init = init;
synth->clk_pll = pll_clk; synth->clk_pll = pll_clk;
return clk_register(NULL, &synth->hw); clk = clk_register(NULL, &synth->hw);
if (IS_ERR(clk)) {
pr_err("failed to register clock\n");
goto free;
}
return clk;
free: free:
kfree(synth); kfree(synth);
kfree(init); kfree(init);
return ERR_PTR(-ENOMEM); return clk;
} }
static void __init ti_fapll_setup(struct device_node *node) static void __init ti_fapll_setup(struct device_node *node)