[PATCH] kernel/kallsyms.c: use __seq_open_private()

From: Rob Jones
Date: Thu Sep 18 2014 - 05:17:37 EST


Reduce boilerplate code by using __seq_open_private() instead of seq_open()
in kallsyms_open().

Signed-off-by: Rob Jones <rob.jones@xxxxxxxxxxxxxxx>
---
kernel/kallsyms.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index cb0cf37..606664d 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -565,19 +565,12 @@ static int kallsyms_open(struct inode *inode, struct file *file)
* using get_symbol_offset for every symbol.
*/
struct kallsym_iter *iter;
- int ret;
-
- iter = kmalloc(sizeof(*iter), GFP_KERNEL);
+ iter = __seq_open_private(file, &kallsyms_op, sizeof(*iter));
if (!iter)
return -ENOMEM;
reset_iter(iter, 0);

- ret = seq_open(file, &kallsyms_op);
- if (ret == 0)
- ((struct seq_file *)file->private_data)->private = iter;
- else
- kfree(iter);
- return ret;
+ return 0;
}

#ifdef CONFIG_KGDB_KDB
--
1.7.10.4

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