Commit 5394ba0f authored by Julia Lawall's avatar Julia Lawall Committed by Linus Torvalds

drivers/video/fsl-diu-fb.c: add missing of_node_put

of_node_put is needed before discarding a value received from
of_find_node_by_type, eg in error handling code.

The semantic patch that makes the change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
struct device_node *n;
struct device_node *n1;
struct device_node *n2;
statement S;
identifier f1,f2;
expression E1,E2;
constant C;
@@

n = of_find_node_by_type(...)
...
if (!n) S
... when != of_node_put(n)
    when != n1 = f1(n,...)
    when != E1 = n
    when any
    when strict
(
+ of_node_put(n);
  return -C;
|
  of_node_put(n);
|
  n2 = f2(n,...)
|
  E2 = n
|
  return ...;
)
// </smpl>
Signed-off-by: default avatarJulia Lawall <julia@diku.dk>
Acked-by: default avatarKrzysztof Helt <krzysztof.h1@wp.pl>
Cc: Timur Tabi <timur@freescale.com>
Cc: York Sun <yorksun@freescale.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 9bd6ceb6
...@@ -1649,8 +1649,10 @@ static int __init fsl_diu_init(void) ...@@ -1649,8 +1649,10 @@ static int __init fsl_diu_init(void)
} }
prop = of_get_property(np, "d-cache-size", NULL); prop = of_get_property(np, "d-cache-size", NULL);
if (prop == NULL) if (prop == NULL) {
of_node_put(np);
return -ENODEV; return -ENODEV;
}
/* Freescale PLRU requires 13/8 times the cache size to do a proper /* Freescale PLRU requires 13/8 times the cache size to do a proper
displacement flush displacement flush
...@@ -1659,8 +1661,10 @@ static int __init fsl_diu_init(void) ...@@ -1659,8 +1661,10 @@ static int __init fsl_diu_init(void)
coherence_data_size /= 8; coherence_data_size /= 8;
prop = of_get_property(np, "d-cache-line-size", NULL); prop = of_get_property(np, "d-cache-line-size", NULL);
if (prop == NULL) if (prop == NULL) {
of_node_put(np);
return -ENODEV; return -ENODEV;
}
d_cache_line_size = *prop; d_cache_line_size = *prop;
of_node_put(np); of_node_put(np);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment