linux-kernel - [PATCH 4/4] power: reset: zx-reboot: Fix module autoload

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Message-Id: <1476729375-17526-5-git-send-email-javier@osg.samsung.com>
Date:   Mon, 17 Oct 2016 15:36:15 -0300
From:   Javier Martinez Canillas <javier@....samsung.com>
To:     linux-kernel@...r.kernel.org
Cc:     Javier Martinez Canillas <javier@....samsung.com>,
        Sebastian Reichel <sre@...nel.org>, linux-pm@...r.kernel.org
Subject: [PATCH 4/4] power: reset: zx-reboot: 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/power/reset/zx-reboot.ko | grep alias
$

After this patch:

$ modinfo drivers/power/reset/zx-reboot.ko | grep alias
alias:          of:N*T*Czte,sysctrlC*
alias:          of:N*T*Czte,sysctrl

Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>

---

 drivers/power/reset/zx-reboot.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/power/reset/zx-reboot.c b/drivers/power/reset/zx-reboot.c
index b0b1eb3a78c2..7549c7f74a3c 100644
--- a/drivers/power/reset/zx-reboot.c
+++ b/drivers/power/reset/zx-reboot.c
@@ -72,6 +72,7 @@ static const struct of_device_id zx_reboot_of_match[] = {
 	{ .compatible = "zte,sysctrl" },
 	{}
 };
+MODULE_DEVICE_TABLE(of, zx_reboot_of_match);
 
 static struct platform_driver zx_reboot_driver = {
 	.probe = zx_reboot_probe,
-- 
2.7.4