From 05e59e5fb0064c97a1c10921ecd549f2d4a58565 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 09 Oct 2024 06:14:40 +0000
Subject: [PATCH] add REDIRECT
---
kernel/drivers/video/fbdev/arcfb.c | 27 +++++++++++++++++----------
1 files changed, 17 insertions(+), 10 deletions(-)
diff --git a/kernel/drivers/video/fbdev/arcfb.c b/kernel/drivers/video/fbdev/arcfb.c
index 7e87d0d..08da436 100644
--- a/kernel/drivers/video/fbdev/arcfb.c
+++ b/kernel/drivers/video/fbdev/arcfb.c
@@ -419,6 +419,8 @@
schedule();
finish_wait(&arcfb_waitq, &wait);
}
+ fallthrough;
+
case FBIO_GETCONTROL2:
{
unsigned char ctl2;
@@ -489,7 +491,7 @@
return err;
}
-static struct fb_ops arcfb_ops = {
+static const struct fb_ops arcfb_ops = {
.owner = THIS_MODULE,
.fb_open = arcfb_open,
.fb_read = fb_sys_read,
@@ -521,7 +523,7 @@
info = framebuffer_alloc(sizeof(struct arcfb_par), &dev->dev);
if (!info)
- goto err;
+ goto err_fb_alloc;
info->screen_base = (char __iomem *)videomemory;
info->fbops = &arcfb_ops;
@@ -533,7 +535,7 @@
if (!dio_addr || !cio_addr || !c2io_addr) {
printk(KERN_WARNING "no IO addresses supplied\n");
- goto err1;
+ goto err_addr;
}
par->dio_addr = dio_addr;
par->cio_addr = cio_addr;
@@ -542,10 +544,6 @@
par->cslut[1] = 0x06;
info->flags = FBINFO_FLAG_DEFAULT;
spin_lock_init(&par->lock);
- retval = register_framebuffer(info);
- if (retval < 0)
- goto err1;
- platform_set_drvdata(dev, info);
if (irq) {
par->irq = irq;
if (request_irq(par->irq, &arcfb_interrupt, IRQF_SHARED,
@@ -553,9 +551,13 @@
printk(KERN_INFO
"arcfb: Failed req IRQ %d\n", par->irq);
retval = -EBUSY;
- goto err1;
+ goto err_addr;
}
}
+ retval = register_framebuffer(info);
+ if (retval < 0)
+ goto err_register_fb;
+ platform_set_drvdata(dev, info);
fb_info(info, "Arc frame buffer device, using %dK of video memory\n",
videomemorysize >> 10);
@@ -578,9 +580,12 @@
}
return 0;
-err1:
+
+err_register_fb:
+ free_irq(par->irq, info);
+err_addr:
framebuffer_release(info);
-err:
+err_fb_alloc:
vfree(videomemory);
return retval;
}
@@ -591,6 +596,8 @@
if (info) {
unregister_framebuffer(info);
+ if (irq)
+ free_irq(((struct arcfb_par *)(info->par))->irq, info);
vfree((void __force *)info->screen_base);
framebuffer_release(info);
}
--
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