diff options
| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2021-04-23 10:02:26 +0300 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2021-09-15 04:25:16 +0300 |
| commit | af9617b419f77cf0b99702a7b2b0519da0d27715 (patch) | |
| tree | df8ae08daca247f9b4b5a0a54445a542723957e7 /drivers/clk/mvebu | |
| parent | 6880fa6c56601bb8ed59df6c30fd390cc5f6dd8f (diff) | |
| download | linux-af9617b419f77cf0b99702a7b2b0519da0d27715.tar.xz | |
clk: mvebu: ap-cpu-clk: Fix a memory leak in error handling paths
If we exit the for_each_of_cpu_node loop early, the reference on the
current node must be decremented, otherwise there is a leak.
Fixes: f756e362d938 ("clk: mvebu: add CPU clock driver for Armada 7K/8K")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/545df946044fc1fc05a4217cdf0054be7a79e49e.1619161112.git.christophe.jaillet@wanadoo.fr
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/mvebu')
| -rw-r--r-- | drivers/clk/mvebu/ap-cpu-clk.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/clk/mvebu/ap-cpu-clk.c b/drivers/clk/mvebu/ap-cpu-clk.c index 08ba59ec3fb1..71bdd7c3ff03 100644 --- a/drivers/clk/mvebu/ap-cpu-clk.c +++ b/drivers/clk/mvebu/ap-cpu-clk.c @@ -256,12 +256,15 @@ static int ap_cpu_clock_probe(struct platform_device *pdev) int cpu, err; err = of_property_read_u32(dn, "reg", &cpu); - if (WARN_ON(err)) + if (WARN_ON(err)) { + of_node_put(dn); return err; + } /* If cpu2 or cpu3 is enabled */ if (cpu & APN806_CLUSTER_NUM_MASK) { nclusters = 2; + of_node_put(dn); break; } } @@ -288,8 +291,10 @@ static int ap_cpu_clock_probe(struct platform_device *pdev) int cpu, err; err = of_property_read_u32(dn, "reg", &cpu); - if (WARN_ON(err)) + if (WARN_ON(err)) { + of_node_put(dn); return err; + } cluster_index = cpu & APN806_CLUSTER_NUM_MASK; cluster_index >>= APN806_CLUSTER_NUM_OFFSET; @@ -301,6 +306,7 @@ static int ap_cpu_clock_probe(struct platform_device *pdev) parent = of_clk_get(np, cluster_index); if (IS_ERR(parent)) { dev_err(dev, "Could not get the clock parent\n"); + of_node_put(dn); return -EINVAL; } parent_name = __clk_get_name(parent); @@ -319,8 +325,10 @@ static int ap_cpu_clock_probe(struct platform_device *pdev) init.parent_names = &parent_name; ret = devm_clk_hw_register(dev, &ap_cpu_clk[cluster_index].hw); - if (ret) + if (ret) { + of_node_put(dn); return ret; + } ap_cpu_data->hws[cluster_index] = &ap_cpu_clk[cluster_index].hw; } |