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usb: musb_debugfs: don't use the struct file private_data field with seq_files 

seq_files use the private_data field of a file struct for storing a seq_file structure,
data should be stored in seq_file's own private field (e.g. file->private_data->private)
Otherwise seq_release() will free the private data when the file is closed.

Signed-off-by: Mathias Nyman <mathias.nyman@nokia.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Mathias Nyman 2010-09-06 13:52:01 +03:00 committed by Greg Kroah-Hartman
parent 2422084a94
commit 024cfa5943
1 changed files with 2 additions and 3 deletions
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5
drivers/usb/musb/musb_debugfs.c
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@ -195,15 +195,14 @@ static const struct file_operations musb_regdump_fops = {
static int musb_test_mode_open(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return single_open(file, musb_test_mode_show, inode->i_private);
}
static ssize_t musb_test_mode_write(struct file *file,
const char __user *ubuf, size_t count, loff_t *ppos)
{
struct musb *musb = file->private_data;
struct seq_file *s = file->private_data;
struct musb *musb = s->private;
u8 test = 0;
char buf[18];