lkml.org 
[lkml]   [2012]   [Sep]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[patch] gcov: cleanup an allocation in new_node()
1) kcalloc(1, ...) can be replaced with kzalloc().
2) There was a small leak if the debugfs_create_dir() fails.
3) I removed a pr_warning("out of memory\n") because kmalloc() already
prints a more useful failure message in the unlikely case of an
allocation failure.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/kernel/gcov/fs.c b/kernel/gcov/fs.c
index 9bd0934..132168f 100644
--- a/kernel/gcov/fs.c
+++ b/kernel/gcov/fs.c
@@ -437,7 +437,7 @@ static struct gcov_node *new_node(struct gcov_node *parent,
if (!node)
goto err_nomem;
if (info) {
- node->loaded_info = kcalloc(1, sizeof(struct gcov_info *),
+ node->loaded_info = kzalloc(sizeof(struct gcov_info *),
GFP_KERNEL);
if (!node->loaded_info)
goto err_nomem;
@@ -451,8 +451,7 @@ static struct gcov_node *new_node(struct gcov_node *parent,
node->dentry = debugfs_create_dir(node->name, parent->dentry);
if (!node->dentry) {
pr_warning("could not create file\n");
- kfree(node);
- return NULL;
+ goto err_info;
}
if (info)
add_links(node, parent->dentry);
@@ -461,9 +460,11 @@ static struct gcov_node *new_node(struct gcov_node *parent,

return node;

+err_info:
+ if (info)
+ kfree(node->loaded_info);
err_nomem:
kfree(node);
- pr_warning("out of memory\n");
return NULL;
}


\
 
 \ /
  Last update: 2012-09-11 14:01    [W:0.269 / U:0.148 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site