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meson-gx-socinfo: add missing of_node_put after of_device_is_available 

Add an of_node_put when a tested device node is not available.

The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):

// <smpl>
@@
identifier f;
local idexpression e;
expression x;
@@

e = f(...);
... when != of_node_put(e)
    when != x = e
    when != e = x
    when any
if (<+...of_device_is_available(e)...+>) {
  ... when != of_node_put(e)
(
  return e;
|
+ of_node_put(e);
  return ...;
)
}
// </smpl>

Fixes: a9daaba296 ("soc: Add Amlogic SoC Information driver")
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This commit is contained in:
Julia Lawall 2019-02-23 14:20:40 +01:00 committed by Kevin Hilman
parent 65f80df58e
commit fdda0a6adc
1 changed files with 3 additions and 1 deletions
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4
drivers/soc/amlogic/meson-gx-socinfo.c
View File

@ -132,8 +132,10 @@ static int __init meson_gx_socinfo_init(void)
return -ENODEV;
/* check if interface is enabled */
if (!of_device_is_available(np))
if (!of_device_is_available(np)) {
of_node_put(np);
return -ENODEV;
}
/* check if chip-id is available */
if (!of_property_read_bool(np, "amlogic,has-chip-id"))