v4l-dvb-modules: add patch to fix slow frontend thread shutdown

(this fixes i2c errors during cxd1981 transponder search)

diff --git a/recipes/v4l-dvb/files/backport-k.patch b/recipes/v4l-dvb/files/backport-k.patch
new file mode 100644 (file)
index 0000000..d23bae4
--- /dev/null
+++ b/recipes/v4l-dvb/files/backport-k.patch
@@ -0,0 +1,36 @@
+commit 8c577726896d50db622d56a06920d19645e5aed8
+Author: ghost <andreas.monzner@multimedia-labs.de>
+Date:   Tue Sep 13 15:59:07 2011 +0200
+
+    DVB: dvb_frontend: fixed (slow) frontend thread shutdown on device close
+
+diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
+index 7784d74..6823c2b 100644
+--- a/drivers/media/dvb/dvb-core/dvb_frontend.c        2011-09-07 12:32:24.000000000 +0200
++++ a/drivers/media/dvb/dvb-core/dvb_frontend.c        2011-09-13 15:55:48.865742791 +0200
+@@ -514,7 +514,7 @@
+               return 1;
+ 
+       if (fepriv->dvbdev->writers == 1)
+-              if (time_after(jiffies, fepriv->release_jiffies +
++              if (time_after_eq(jiffies, fepriv->release_jiffies +
+                                 dvb_shutdown_timeout * HZ))
+                       return 1;
+ 
+@@ -2070,12 +2070,15 @@
+ 
+       dprintk ("%s\n", __func__);
+ 
+-      if ((file->f_flags & O_ACCMODE) != O_RDONLY)
++      if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
+               fepriv->release_jiffies = jiffies;
++              mb();
++      }
+ 
+       ret = dvb_generic_release (inode, file);
+ 
+       if (dvbdev->users == -1) {
++              wake_up(&fepriv->wait_queue);
+               if (fepriv->exit != DVB_FE_NO_EXIT) {
+                       fops_put(file->f_op);
+                       file->f_op = NULL;

diff --git a/recipes/v4l-dvb/v4l-dvb-modules_hg.bb b/recipes/v4l-dvb/v4l-dvb-modules_hg.bb
index 56e6c53..1aecd94 100644 (file)
--- a/recipes/v4l-dvb/v4l-dvb-modules_hg.bb
+++ b/recipes/v4l-dvb/v4l-dvb-modules_hg.bb
@@ -5,7 +5,7 @@ DEPENDS += " mercurial-native"
 SRCDATE = "20100904"
 SRCREV = "6e0befab696a"
 PV = "0.0+hg${SRCDATE}"
-PR = "r4"
+PR = "r5"
 
 SRC_URI = "hg://linuxtv.org/hg/;module=v4l-dvb;rev=${SRCREV} \
            file://defconfig \