[POWERPC] arch/powerpc: Add missing of_node_put
Author: Julia Lawall <julia@diku.dk>
There should be an of_node_put when breaking out of a loop that iterates
over calls to of_find_all_nodes, as this function does an of_node_get on
the value it returns.
This was fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)
//
@@
type T;
identifier d;
expression e;
@@
T *d;
...
for (d = NULL; (d = of_find_all_nodes(d)) != NULL; )
{... when != of_node_put(d)
when != e = d
(
return d;
|
+ of_node_put(d);
? return ...;
)
...}
//
Signed-off-by: Julia Lawall
Cc: Benjamin Herrenschmidt
Signed-off-by: Andrew Morton
Signed-off-by: Paul Mackerras
---
arch/powerpc/platforms/iseries/iommu.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c
index 49e9c66..6a0c6f6 100644
--- a/arch/powerpc/platforms/iseries/iommu.c
+++ b/arch/powerpc/platforms/iseries/iommu.c
@@ -163,8 +163,10 @@ static struct iommu_table *iommu_table_find(struct iommu_table * tbl)
(it->it_type == TCE_PCI) &&
(it->it_offset == tbl->it_offset) &&
(it->it_index == tbl->it_index) &&
- (it->it_size == tbl->it_size))
+ (it->it_size == tbl->it_size)) {
+ of_node_put(node);
return it;
+ }
}
return NULL;
} |
---
arch/powerpc/platforms/iseries/iommu.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c
index 49e9c66..6a0c6f6 100644
--- a/arch/powerpc/platforms/iseries/iommu.c
+++ b/arch/powerpc/platforms/iseries/iommu.c
@@ -163,8 +163,10 @@ static struct iommu_table *iommu_table_find(struct iommu_table * tbl)
(it->it_type == TCE_PCI) &&
(it->it_offset == tbl->it_offset) &&
(it->it_index == tbl->it_index) &&
- (it->it_size == tbl->it_size))
+ (it->it_size == tbl->it_size)) {
+ of_node_put(node);
return it;
+ }
}
return NULL;
}