diff options
| -rw-r--r-- | drivers/video/fbmem.c | 18 | ||||
| -rw-r--r-- | drivers/video/udlfb.c | 2 | ||||
| -rw-r--r-- | include/linux/fb.h | 1 |
3 files changed, 19 insertions, 2 deletions
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index ac9141b85356..c6ce416ab587 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -1665,6 +1665,7 @@ static int do_unregister_framebuffer(struct fb_info *fb_info) if (ret) return -EINVAL; + unlink_framebuffer(fb_info); if (fb_info->pixmap.addr && (fb_info->pixmap.flags & FB_PIXMAP_DEFAULT)) kfree(fb_info->pixmap.addr); @@ -1672,7 +1673,6 @@ static int do_unregister_framebuffer(struct fb_info *fb_info) registered_fb[i] = NULL; num_registered_fb--; fb_cleanup_device(fb_info); - device_destroy(fb_class, MKDEV(FB_MAJOR, i)); event.info = fb_info; fb_notifier_call_chain(FB_EVENT_FB_UNREGISTERED, &event); @@ -1681,6 +1681,22 @@ static int do_unregister_framebuffer(struct fb_info *fb_info) return 0; } +int unlink_framebuffer(struct fb_info *fb_info) +{ + int i; + + i = fb_info->node; + if (i < 0 || i >= FB_MAX || registered_fb[i] != fb_info) + return -EINVAL; + + if (fb_info->dev) { + device_destroy(fb_class, MKDEV(FB_MAJOR, i)); + fb_info->dev = NULL; + } + return 0; +} +EXPORT_SYMBOL(unlink_framebuffer); + void remove_conflicting_framebuffers(struct apertures_struct *a, const char *name, bool primary) { diff --git a/drivers/video/udlfb.c b/drivers/video/udlfb.c index a19773149bd7..a40c05ebbdc2 100644 --- a/drivers/video/udlfb.c +++ b/drivers/video/udlfb.c @@ -1739,7 +1739,7 @@ static void dlfb_usb_disconnect(struct usb_interface *interface) for (i = 0; i < ARRAY_SIZE(fb_device_attrs); i++) device_remove_file(info->dev, &fb_device_attrs[i]); device_remove_bin_file(info->dev, &edid_attr); - + unlink_framebuffer(info); usb_set_intfdata(interface, NULL); /* if clients still have us open, will be freed on last close */ diff --git a/include/linux/fb.h b/include/linux/fb.h index c18122f40543..a395b8c76992 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -1003,6 +1003,7 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf, /* drivers/video/fbmem.c */ extern int register_framebuffer(struct fb_info *fb_info); extern int unregister_framebuffer(struct fb_info *fb_info); +extern int unlink_framebuffer(struct fb_info *fb_info); extern void remove_conflicting_framebuffers(struct apertures_struct *a, const char *name, bool primary); extern int fb_prepare_logo(struct fb_info *fb_info, int rotate); |