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| author | Paul Fulghum <paulkf@microgate.com> | 2008-07-22 11:23:24 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-22 13:03:29 -0700 |
| commit | c68a99cda87a8356ea0e56cc5111043ac8402ffd (patch) | |
| tree | 26ed5107f60a75868ef224f96872ba195af0c3e4 /drivers/char/synclink_gt.c | |
| parent | 814dae031d08d40d34c0403a54d6e659baf0ae71 (diff) | |
| download | kernel-common-c68a99cda87a8356ea0e56cc5111043ac8402ffd.tar.gz kernel-common-c68a99cda87a8356ea0e56cc5111043ac8402ffd.tar.bz2 kernel-common-c68a99cda87a8356ea0e56cc5111043ac8402ffd.zip | |
synclink_gt fix locking in error path of rx enable
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>
Diffstat (limited to 'drivers/char/synclink_gt.c')
| -rw-r--r-- | drivers/char/synclink_gt.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c index 5ffdb364ea40..3e9058993e41 100644 --- a/drivers/char/synclink_gt.c +++ b/drivers/char/synclink_gt.c @@ -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 */ } |