From: Javier Martinez Canillas <javier@osg.samsung.com>
Date: Mon, 17 Oct 2016 15:44:12 +0000 (-0200)
Subject: [media] st-cec: Fix module autoload
X-Git-Tag: v4.10-rc1~71^2^2~268
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=2411434a2b78b38f70b3447d46b9c7db4f20fe54;p=linux.git

[media] st-cec: Fix module autoload

If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.

Export the module alias information using the MODULE_DEVICE_TABLE() macro.

Before this patch:

$ modinfo drivers/staging/media//st-cec/stih-cec.ko | grep alias
$

After this patch:

$ modinfo drivers/staging/media//st-cec/stih-cec.ko | grep alias
alias:          of:N*T*Cst,stih-cecC*
alias:          of:N*T*Cst,stih-cec

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
---

diff --git a/drivers/staging/media/st-cec/stih-cec.c b/drivers/staging/media/st-cec/stih-cec.c
index b0aee1d4d5d0..1f1542e8154f 100644
--- a/drivers/staging/media/st-cec/stih-cec.c
+++ b/drivers/staging/media/st-cec/stih-cec.c
@@ -362,6 +362,7 @@ static const struct of_device_id stih_cec_match[] = {
 	},
 	{},
 };
+MODULE_DEVICE_TABLE(of, stih_cec_match);
 
 static struct platform_driver stih_cec_pdrv = {
 	.probe	= stih_cec_probe,