diff options
| author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2013-06-21 15:01:05 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-24 16:25:11 -0700 |
| commit | 585d98e00ba7a5e2abe65f7a1eff631cb612289b (patch) | |
| tree | 6465f91dcd97507e8aaa4ee7fc1a793c1c7c2a38 /drivers/char | |
| parent | 2608fb653103419ac163206ff6d51b7b6528e2d9 (diff) | |
char: misc: assign file->private_data in all cases
In fa1f68db6ca ("drivers: misc: pass miscdevice pointer via file
private data"), the misc driver infrastructure was changed to assigned
file->private_data as a pointer to the 'struct miscdevice' that
corresponds to the device being opened.
However, this assignment was only done when the misc driver was
declaring a driver-specific ->open() operation in its
file_operations. This doesn't make sense, as the driver may not
necessarily have a custom ->open() operation, and might still be
interested in having file->private_data properly set for use in its
->read() and write() operations.
Therefore, we move the assignment of file->private_data outside of the
condition that tests whether a driver-specific ->open() operation was
defined.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/misc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/misc.c b/drivers/char/misc.c index 190d4423653..fd504d35859 100644 --- a/drivers/char/misc.c +++ b/drivers/char/misc.c @@ -143,8 +143,8 @@ static int misc_open(struct inode * inode, struct file * file) err = 0; old_fops = file->f_op; file->f_op = new_fops; + file->private_data = c; if (file->f_op->open) { - file->private_data = c; err=file->f_op->open(inode,file); if (err) { fops_put(file->f_op); |