svn commit: r368103 - stable/12/sys/dev/sound/pcm

[Konstantin Belousov]

Author: kib
Date: Fri Nov 27 11:51:07 2020
New Revision: 368103
URL: https://svnweb.freebsd.org/changeset/base/368103

Log:
  MFC r367892:
  Unlock channels when any of them are locked, when returning for non-busy state.

Modified:
  stable/12/sys/dev/sound/pcm/dsp.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/dev/sound/pcm/dsp.c
==============================================================================
--- stable/12/sys/dev/sound/pcm/dsp.c	Fri Nov 27 11:48:33 2020	(r368102)
+++ stable/12/sys/dev/sound/pcm/dsp.c	Fri Nov 27 11:51:07 2020	(r368103)
@@ -858,6 +858,8 @@ dsp_io_ops(struct cdev *i_dev, struct uio *buf)
 	getchns(i_dev, &rdch, &wrch, prio);
 
 	if (*ch == NULL || !((*ch)->flags & CHN_F_BUSY)) {
+		if (rdch != NULL || wrch != NULL)
+			relchns(i_dev, rdch, wrch, prio);
 		PCM_GIANT_EXIT(d);
 		return (EBADF);
 	}