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synclink_gt fix locking in error path of rx enable

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Fix locking in error path of rx_enable() introduced by
synclink_gt-add-rx-dma-buffer-fill-level-control patch.

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Paul Fulghum 2008-07-22 11:23:24 +01:00 committed by Linus Torvalds
parent 814dae031d
commit c68a99cda8
1 changed files with 3 additions and 1 deletions
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4
drivers/char/synclink_gt.c
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@ -2686,8 +2686,10 @@ static int rx_enable(struct slgt_info *info, int enable)
*/
rbuf_fill_level = ((unsigned int)enable) >> 16;
if (rbuf_fill_level) {
if ((rbuf_fill_level > DMABUFSIZE) || (rbuf_fill_level % 4))
if ((rbuf_fill_level > DMABUFSIZE) || (rbuf_fill_level % 4)) {
spin_unlock_irqrestore(&info->lock, flags);
return -EINVAL;
}
info->rbuf_fill_level = rbuf_fill_level;
rx_stop(info); /* restart receiver to use new fill level */
}