linux-kernel - [ 13/47] media: dvb_frontend: fix a regression with DVB-S zig-zag

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Date:	Fri, 18 May 2012 14:27:02 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk,
	Michael Heijenga <database.worker@...glemail.com>,
	Mauro Carvalho Chehab <mchehab@...hat.com>
Subject: [ 13/47] media: dvb_frontend: fix a regression with DVB-S zig-zag

3.3-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mauro Carvalho Chehab <mchehab@...hat.com>

commit 910a5f2e9642d5be373beae3d29e1c4a3bc7d83b upstream.

Changeset 5bfaadde broke zig-zag for DVB-S drivers that don't
implement get_tune_settings() callback.

Fix the code, in order to allow it to work as before, otherwise
some channels may not be tuned anymore.

Fix Fedora Bugzilla:
	https://bugzilla.redhat.com/show_bug.cgi?id=814404

Reported-by: Michael Heijenga <database.worker@...glemail.com>
Tested-by: Michael Heijenga <database.worker@...glemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/media/dvb/dvb-core/dvb_frontend.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -1921,6 +1921,10 @@ static int dtv_set_frontend(struct dvb_f
 	} else {
 		/* default values */
 		switch (c->delivery_system) {
+		case SYS_DVBS:
+		case SYS_DVBS2:
+		case SYS_ISDBS:
+		case SYS_TURBO:
 		case SYS_DVBC_ANNEX_A:
 		case SYS_DVBC_ANNEX_C:
 			fepriv->min_delay = HZ / 20;


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