linux-kernel - [PATCH] staging: fbtft: core: set smem_len before fb_deferred_io

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Date:   Tue, 26 Jul 2022 10:21:13 +0200
From:   Peter Suti <peter.suti@...eamunlimited.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Peter Suti <peter.suti@...eamunlimited.com>,
        dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [PATCH] staging: fbtft: core: set smem_len before fb_deferred_io_init call

fb_deferred_io_init depends on smem_len being filled
to be able to initialize the virtual page lists since
commit 856082f021a2 ("fbdev: defio: fix the pagelist corruption")

Signed-off-by: Peter Suti <peter.suti@...eamunlimited.com>
---
 drivers/staging/fbtft/fbtft-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index 9c4d797e7ae4..4137c1a51e1b 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -656,7 +656,6 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 	fbdefio->delay =           HZ / fps;
 	fbdefio->sort_pagelist =   true;
 	fbdefio->deferred_io =     fbtft_deferred_io;
-	fb_deferred_io_init(info);
 
 	snprintf(info->fix.id, sizeof(info->fix.id), "%s", dev->driver->name);
 	info->fix.type =           FB_TYPE_PACKED_PIXELS;
@@ -667,6 +666,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
 	info->fix.line_length =    width * bpp / 8;
 	info->fix.accel =          FB_ACCEL_NONE;
 	info->fix.smem_len =       vmem_size;
+	fb_deferred_io_init(info);
 
 	info->var.rotate =         pdata->rotate;
 	info->var.xres =           width;
-- 
2.25.1