From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de> To: Helge Deller <deller@gmx.de>, Javier Martinez Canillas <javierm@redhat.com>, Thomas Zimmermann <tzimmermann@suse.de>, Zeng Heng <zengheng4@huawei.com> Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, kernel@pengutronix.de Subject: [PATCH 46/51] video: fbdev: vga16fb: Convert to platform remove callback returning void Date: Sun, 19 Mar 2023 00:54:23 +0100 [thread overview] Message-ID: <20230318235428.272091-47-u.kleine-koenig@pengutronix.de> (raw) In-Reply-To: <20230318235428.272091-1-u.kleine-koenig@pengutronix.de> The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/video/fbdev/vga16fb.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/vga16fb.c b/drivers/video/fbdev/vga16fb.c index 1a8ffdb2be26..34d00347ad58 100644 --- a/drivers/video/fbdev/vga16fb.c +++ b/drivers/video/fbdev/vga16fb.c @@ -1401,14 +1401,12 @@ static int vga16fb_probe(struct platform_device *dev) return ret; } -static int vga16fb_remove(struct platform_device *dev) +static void vga16fb_remove(struct platform_device *dev) { struct fb_info *info = platform_get_drvdata(dev); if (info) unregister_framebuffer(info); - - return 0; } static const struct platform_device_id vga16fb_driver_id_table[] = { @@ -1420,7 +1418,7 @@ MODULE_DEVICE_TABLE(platform, vga16fb_driver_id_table); static struct platform_driver vga16fb_driver = { .probe = vga16fb_probe, - .remove = vga16fb_remove, + .remove_new = vga16fb_remove, .driver = { .name = "vga16fb", }, -- 2.39.2
WARNING: multiple messages have this Message-ID (diff)
From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de> To: Helge Deller <deller@gmx.de>, Javier Martinez Canillas <javierm@redhat.com>, Thomas Zimmermann <tzimmermann@suse.de>, Zeng Heng <zengheng4@huawei.com> Cc: linux-fbdev@vger.kernel.org, kernel@pengutronix.de, dri-devel@lists.freedesktop.org Subject: [PATCH 46/51] video: fbdev: vga16fb: Convert to platform remove callback returning void Date: Sun, 19 Mar 2023 00:54:23 +0100 [thread overview] Message-ID: <20230318235428.272091-47-u.kleine-koenig@pengutronix.de> (raw) In-Reply-To: <20230318235428.272091-1-u.kleine-koenig@pengutronix.de> The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/video/fbdev/vga16fb.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/vga16fb.c b/drivers/video/fbdev/vga16fb.c index 1a8ffdb2be26..34d00347ad58 100644 --- a/drivers/video/fbdev/vga16fb.c +++ b/drivers/video/fbdev/vga16fb.c @@ -1401,14 +1401,12 @@ static int vga16fb_probe(struct platform_device *dev) return ret; } -static int vga16fb_remove(struct platform_device *dev) +static void vga16fb_remove(struct platform_device *dev) { struct fb_info *info = platform_get_drvdata(dev); if (info) unregister_framebuffer(info); - - return 0; } static const struct platform_device_id vga16fb_driver_id_table[] = { @@ -1420,7 +1418,7 @@ MODULE_DEVICE_TABLE(platform, vga16fb_driver_id_table); static struct platform_driver vga16fb_driver = { .probe = vga16fb_probe, - .remove = vga16fb_remove, + .remove_new = vga16fb_remove, .driver = { .name = "vga16fb", }, -- 2.39.2
next prev parent reply other threads:[~2023-03-18 23:55 UTC|newest] Thread overview: 133+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-03-18 23:53 [PATCH 00/51] video: fbdev: Convert to platform remove callback returning void Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 01/51] video: fbdev: au1100fb: Drop if with an always false condition Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 02/51] video: fbdev: arcfb: Convert to platform remove callback returning void Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 03/51] video: fbdev: au1100fb: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 04/51] video: fbdev: au1200fb: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 05/51] video: fbdev: broadsheetfb: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 06/51] video: fbdev: bw2: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 07/51] video: fbdev: cg14: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 08/51] video: fbdev: cg3: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 09/51] video: fbdev: cg6: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 10/51] video: fbdev: clps711x-fb: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 11/51] video: fbdev: cobalt_lcdfb: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 12/51] video: fbdev: da8xx-fb: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 13/51] video: fbdev: efifb: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 14/51] video: fbdev: ep93xx-fb: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 15/51] video: fbdev: ffb: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 16/51] video: fbdev: fsl-diu-fb: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 17/51] video: fbdev: gbefb: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 18/51] video: fbdev: goldfishfb: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 19/51] video: fbdev: grvga: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 20/51] video: fbdev: hecubafb: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 21/51] video: fbdev: hgafb: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:53 ` [PATCH 22/51] video: fbdev: hitfb: " Uwe Kleine-König 2023-03-18 23:53 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 23/51] video: fbdev: imxfb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 24/51] video: fbdev: leo: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 25/51] video: fbdev: mb862xx: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 26/51] video: fbdev: metronomefb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 27/51] video: fbdev: mx3fb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 28/51] video: fbdev: ocfb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 29/51] video: fbdev: offb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 30/51] video: fbdev: omapfb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 31/51] video: fbdev: p9100: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 32/51] video: fbdev: platinumfb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 33/51] video: fbdev: pxa168fb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 34/51] video: fbdev: pxa3xx-gcu: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 35/51] video: fbdev: pxafb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 36/51] video: fbdev: s1d13xxxfb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 37/51] video: fbdev: s3c-fb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 38/51] video: fbdev: sh7760fb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 39/51] video: fbdev: sh_mobile_lcdcfb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-19 9:16 ` Geert Uytterhoeven 2023-03-19 9:16 ` Geert Uytterhoeven 2023-03-18 23:54 ` [PATCH 40/51] video: fbdev: simplefb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 41/51] video: fbdev: sm501fb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 42/51] video: fbdev: tcx: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 43/51] video: fbdev: uvesafb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 44/51] video: fbdev: vesafb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 45/51] video: fbdev: vfb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König [this message] 2023-03-18 23:54 ` [PATCH 46/51] video: fbdev: vga16fb: " Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 47/51] video: fbdev: via: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 48/51] video: fbdev: vt8500lcdfb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 49/51] video: fbdev: wm8505fb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 50/51] video: fbdev: wmt_ge_rops: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` [PATCH 51/51] video: fbdev: xilinxfb: " Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-18 23:54 ` Uwe Kleine-König 2023-03-19 18:04 ` [PATCH 00/51] video: fbdev: " Helge Deller 2023-03-19 18:04 ` Helge Deller 2023-03-19 21:08 ` Uwe Kleine-König 2023-03-19 21:08 ` Uwe Kleine-König 2023-03-19 21:08 ` Uwe Kleine-König 2023-03-19 21:41 ` Helge Deller 2023-03-19 21:41 ` Helge Deller 2023-03-19 21:41 ` Helge Deller 2023-05-30 14:02 ` Uwe Kleine-König 2023-05-30 14:02 ` Uwe Kleine-König 2023-05-30 14:02 ` Uwe Kleine-König 2023-05-30 16:12 ` Helge Deller 2023-05-30 16:12 ` Helge Deller 2023-05-30 16:12 ` Helge Deller 2023-05-30 16:27 ` Uwe Kleine-König 2023-05-30 16:27 ` Uwe Kleine-König 2023-05-30 16:27 ` Uwe Kleine-König 2023-05-30 16:34 ` Helge Deller 2023-05-30 16:34 ` Helge Deller 2023-05-30 16:34 ` Helge Deller 2023-03-20 10:03 ` Thomas Zimmermann
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