X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fvideo%2Ffbmem.c;h=372aa177682798bc2544ad3f04032ad6a36dc7c9;hb=862fc81b62c2d41a7e0b97b90844c80e59c7b0f1;hp=996c7b58564e33b4f555c9669ff14935b79ae457;hpb=ae02e964b669f19fb08d953032463ab7dc6f79eb;p=powerpc.git

diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 996c7b5856..372aa17768 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -55,7 +55,7 @@
 
 #define FBPIXMAPSIZE	(1024 * 8)
 
-static struct notifier_block *fb_notifier_list;
+static BLOCKING_NOTIFIER_HEAD(fb_notifier_list);
 struct fb_info *registered_fb[FB_MAX];
 int num_registered_fb;
 
@@ -435,6 +435,11 @@ int fb_prepare_logo(struct fb_info *info, int rotate)
 			depth = info->var.green.length;
 	}
 
+	if (info->fix.visual == FB_VISUAL_STATIC_PSEUDOCOLOR) {
+		/* assume console colormap */
+		depth = 4;
+	}
+
 	if (depth >= 8) {
 		switch (info->fix.visual) {
 		case FB_VISUAL_TRUECOLOR:
@@ -669,13 +674,19 @@ fb_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
 		total_size = info->fix.smem_len;
 
 	if (p > total_size)
-		return 0;
+		return -EFBIG;
 
-	if (count >= total_size)
+	if (count > total_size) {
+		err = -EFBIG;
 		count = total_size;
+	}
+
+	if (count + p > total_size) {
+		if (!err)
+			err = -ENOSPC;
 
-	if (count + p > total_size)
 		count = total_size - p;
+	}
 
 	buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count,
 			 GFP_KERNEL);
@@ -717,7 +728,7 @@ fb_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
 
 	kfree(buffer);
 
-	return (err) ? err : cnt;
+	return (cnt) ? cnt : err;
 }
 
 #ifdef CONFIG_KMOD
@@ -784,7 +795,7 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var)
 
 		    event.info = info;
 		    event.data = &mode1;
-		    ret = notifier_call_chain(&fb_notifier_list,
+		    ret = blocking_notifier_call_chain(&fb_notifier_list,
 					      FB_EVENT_MODE_DELETE, &event);
 		}
 
@@ -830,8 +841,8 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var)
 
 				info->flags &= ~FBINFO_MISC_USEREVENT;
 				event.info = info;
-				notifier_call_chain(&fb_notifier_list, evnt,
-						    &event);
+				blocking_notifier_call_chain(&fb_notifier_list,
+						evnt, &event);
 			}
 		}
 	}
@@ -854,7 +865,8 @@ fb_blank(struct fb_info *info, int blank)
 
 		event.info = info;
 		event.data = ␣
-		notifier_call_chain(&fb_notifier_list, FB_EVENT_BLANK, &event);
+		blocking_notifier_call_chain(&fb_notifier_list,
+				FB_EVENT_BLANK, &event);
 	}
 
  	return ret;
@@ -925,7 +937,7 @@ fb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
 		con2fb.framebuffer = -1;
 		event.info = info;
 		event.data = &con2fb;
-		notifier_call_chain(&fb_notifier_list,
+		blocking_notifier_call_chain(&fb_notifier_list,
 				    FB_EVENT_GET_CONSOLE_MAP, &event);
 		return copy_to_user(argp, &con2fb,
 				    sizeof(con2fb)) ? -EFAULT : 0;
@@ -944,7 +956,7 @@ fb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
 		    return -EINVAL;
 		event.info = info;
 		event.data = &con2fb;
-		return notifier_call_chain(&fb_notifier_list,
+		return blocking_notifier_call_chain(&fb_notifier_list,
 					   FB_EVENT_SET_CONSOLE_MAP,
 					   &event);
 	case FBIOBLANK:
@@ -1169,11 +1181,6 @@ fb_mmap(struct file *file, struct vm_area_struct * vma)
 	vma->vm_pgoff = off >> PAGE_SHIFT;
 	/* This is an IO map - tell maydump to skip this VMA */
 	vma->vm_flags |= VM_IO | VM_RESERVED;
-#if defined(__sparc_v9__)
-	if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
-				vma->vm_end - vma->vm_start, vma->vm_page_prot))
-		return -EAGAIN;
-#else
 #if defined(__mc68000__)
 #if defined(CONFIG_SUN3)
 	pgprot_val(vma->vm_page_prot) |= SUN3_PAGE_NOCACHE;
@@ -1195,7 +1202,7 @@ fb_mmap(struct file *file, struct vm_area_struct * vma)
 #elif defined(__i386__) || defined(__x86_64__)
 	if (boot_cpu_data.x86 > 3)
 		pgprot_val(vma->vm_page_prot) |= _PAGE_PCD;
-#elif defined(__mips__)
+#elif defined(__mips__) || defined(__sparc_v9__)
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 #elif defined(__hppa__)
 	pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
@@ -1212,7 +1219,6 @@ fb_mmap(struct file *file, struct vm_area_struct * vma)
 	if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
 			     vma->vm_end - vma->vm_start, vma->vm_page_prot))
 		return -EAGAIN;
-#endif /* !__sparc_v9__ */
 	return 0;
 #endif /* !sparc32 */
 }
@@ -1330,7 +1336,7 @@ register_framebuffer(struct fb_info *fb_info)
 	devfs_mk_cdev(MKDEV(FB_MAJOR, i),
 			S_IFCHR | S_IRUGO | S_IWUGO, "fb/%d", i);
 	event.info = fb_info;
-	notifier_call_chain(&fb_notifier_list,
+	blocking_notifier_call_chain(&fb_notifier_list,
 			    FB_EVENT_FB_REGISTERED, &event);
 	return 0;
 }
@@ -1372,7 +1378,7 @@ unregister_framebuffer(struct fb_info *fb_info)
  */
 int fb_register_client(struct notifier_block *nb)
 {
-	return notifier_chain_register(&fb_notifier_list, nb);
+	return blocking_notifier_chain_register(&fb_notifier_list, nb);
 }
 
 /**
@@ -1381,7 +1387,7 @@ int fb_register_client(struct notifier_block *nb)
  */
 int fb_unregister_client(struct notifier_block *nb)
 {
-	return notifier_chain_unregister(&fb_notifier_list, nb);
+	return blocking_notifier_chain_unregister(&fb_notifier_list, nb);
 }
 
 /**
@@ -1399,11 +1405,13 @@ void fb_set_suspend(struct fb_info *info, int state)
 
 	event.info = info;
 	if (state) {
-		notifier_call_chain(&fb_notifier_list, FB_EVENT_SUSPEND, &event);
+		blocking_notifier_call_chain(&fb_notifier_list,
+				FB_EVENT_SUSPEND, &event);
 		info->state = FBINFO_STATE_SUSPENDED;
 	} else {
 		info->state = FBINFO_STATE_RUNNING;
-		notifier_call_chain(&fb_notifier_list, FB_EVENT_RESUME, &event);
+		blocking_notifier_call_chain(&fb_notifier_list,
+				FB_EVENT_RESUME, &event);
 	}
 }
 
@@ -1475,7 +1483,7 @@ int fb_new_modelist(struct fb_info *info)
 
 	if (!list_empty(&info->modelist)) {
 		event.info = info;
-		err = notifier_call_chain(&fb_notifier_list,
+		err = blocking_notifier_call_chain(&fb_notifier_list,
 					   FB_EVENT_NEW_MODELIST,
 					   &event);
 	}
@@ -1501,7 +1509,7 @@ int fb_con_duit(struct fb_info *info, int event, void *data)
 	evnt.info = info;
 	evnt.data = data;
 
-	return notifier_call_chain(&fb_notifier_list, event, &evnt);
+	return blocking_notifier_call_chain(&fb_notifier_list, event, &evnt);
 }
 EXPORT_SYMBOL(fb_con_duit);
 
@@ -1591,7 +1599,7 @@ static int __init video_setup(char *options)
 		}
 	}
 
-	return 0;
+	return 1;
 }
 __setup("video=", video_setup);
 #endif