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authorHans Verkuil <hans.verkuil@cisco.com>2014-03-07 07:28:39 -0300
committerMauro Carvalho Chehab <m.chehab@samsung.com>2014-03-28 18:09:49 -0300
commit30d652823de5fd7907d40e969a2d8e23938d8d03 (patch)
tree4d234fc5fc31aabb9ecd6ded9884be530280c37d
parentc4885ada88e4331f8ac56d14296d0058359db2d7 (diff)
downloadlinux-30d652823de5fd7907d40e969a2d8e23938d8d03.tar.gz
[media] saa7134: fix WARN_ON during resume
Do not attempt to reload the tuner modules when resuming after a suspend.
This triggers a WARN_ON in kernel/kmod.c:148 __request_module.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=69581.

This has always been wrong, but it was never noticed until the WARN_ON
was added in 3.9.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org      # for v3.9 and up
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
-rw-r--r--drivers/media/pci/saa7134/saa7134-cards.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/pci/saa7134/saa7134-cards.c b/drivers/media/pci/saa7134/saa7134-cards.c
index c9b2350e92c8..6e4bdb90aa92 100644
--- a/drivers/media/pci/saa7134/saa7134-cards.c
+++ b/drivers/media/pci/saa7134/saa7134-cards.c
@@ -8045,8 +8045,8 @@ int saa7134_board_init2(struct saa7134_dev *dev)
 		break;
 	} /* switch() */
 
-	/* initialize tuner */
-	if (TUNER_ABSENT != dev->tuner_type) {
+	/* initialize tuner (don't do this when resuming) */
+	if (!dev->insuspend && TUNER_ABSENT != dev->tuner_type) {
 		int has_demod = (dev->tda9887_conf & TDA9887_PRESENT);
 
 		/* Note: radio tuner address is always filled in,