linux-kernel - [PATCH 5/5] staging: fbtft: fb_watterott: define backlight

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Message-Id: <1439757397-2304-6-git-send-email-mike.rapoport@gmail.com>
Date:	Sun, 16 Aug 2015 23:36:37 +0300
From:	Mike Rapoport <mike.rapoport@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Mike Rapoport <mike.rapoport@...il.com>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Noralf Trønnes <noralf@...nnes.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 5/5] staging: fbtft: fb_watterott: define backlight_ops statically

instead of devm_kzalloc'ing them

Signed-off-by: Mike Rapoport <mike.rapoport@...il.com>
---
 drivers/staging/fbtft/fb_watterott.c | 17 +++++------------
 1 file changed, 5 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/fbtft/fb_watterott.c b/drivers/staging/fbtft/fb_watterott.c
index 88fb2c0..e8ebe2e 100644
--- a/drivers/staging/fbtft/fb_watterott.c
+++ b/drivers/staging/fbtft/fb_watterott.c
@@ -257,31 +257,24 @@ static int backlight_chip_update_status(struct backlight_device *bd)
 	return 0;
 }
 
+static const struct backlight_ops bl_ops = {
+	.update_status = backlight_chip_update_status,
+};
+
 static void register_chip_backlight(struct fbtft_par *par)
 {
 	struct backlight_device *bd;
 	struct backlight_properties bl_props = { 0, };
-	struct backlight_ops *bl_ops;
 
 	fbtft_par_dbg(DEBUG_BACKLIGHT, par, "%s()\n", __func__);
 
-	bl_ops = devm_kzalloc(par->info->device, sizeof(struct backlight_ops),
-				GFP_KERNEL);
-	if (!bl_ops) {
-		dev_err(par->info->device,
-			"%s: could not allocate memory for backlight operations.\n",
-			__func__);
-		return;
-	}
-
-	bl_ops->update_status = backlight_chip_update_status;
 	bl_props.type = BACKLIGHT_RAW;
 	bl_props.power = FB_BLANK_POWERDOWN;
 	bl_props.max_brightness = 100;
 	bl_props.brightness = DEFAULT_BRIGHTNESS;
 
 	bd = backlight_device_register(dev_driver_string(par->info->device),
-				par->info->device, par, bl_ops, &bl_props);
+				par->info->device, par, &bl_ops, &bl_props);
 	if (IS_ERR(bd)) {
 		dev_err(par->info->device,
 			"cannot register backlight device (%ld)\n",
-- 
1.8.3.1

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