diff options
Diffstat (limited to 'drivers/video/fbmem.c')
| -rw-r--r-- | drivers/video/fbmem.c | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index 010d19105eb..e296967a3ab 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -1577,10 +1577,10 @@ static bool fb_do_apertures_overlap(struct apertures_struct *gena, static int do_unregister_framebuffer(struct fb_info *fb_info); #define VGA_FB_PHYS 0xA0000 -static void do_remove_conflicting_framebuffers(struct apertures_struct *a, - const char *name, bool primary) +static int do_remove_conflicting_framebuffers(struct apertures_struct *a, + const char *name, bool primary) { - int i; + int i, ret; /* check all firmware fbs and kick off if the base addr overlaps */ for (i = 0 ; i < FB_MAX; i++) { @@ -1599,22 +1599,29 @@ static void do_remove_conflicting_framebuffers(struct apertures_struct *a, printk(KERN_INFO "fb: conflicting fb hw usage " "%s vs %s - removing generic driver\n", name, registered_fb[i]->fix.id); - do_unregister_framebuffer(registered_fb[i]); + ret = do_unregister_framebuffer(registered_fb[i]); + if (ret) + return ret; } } + + return 0; } static int do_register_framebuffer(struct fb_info *fb_info) { - int i; + int i, ret; struct fb_event event; struct fb_videomode mode; if (fb_check_foreignness(fb_info)) return -ENOSYS; - do_remove_conflicting_framebuffers(fb_info->apertures, fb_info->fix.id, - fb_is_primary_device(fb_info)); + ret = do_remove_conflicting_framebuffers(fb_info->apertures, + fb_info->fix.id, + fb_is_primary_device(fb_info)); + if (ret) + return ret; if (num_registered_fb == FB_MAX) return -ENXIO; @@ -1739,12 +1746,16 @@ int unlink_framebuffer(struct fb_info *fb_info) } EXPORT_SYMBOL(unlink_framebuffer); -void remove_conflicting_framebuffers(struct apertures_struct *a, - const char *name, bool primary) +int remove_conflicting_framebuffers(struct apertures_struct *a, + const char *name, bool primary) { + int ret; + mutex_lock(®istration_lock); - do_remove_conflicting_framebuffers(a, name, primary); + ret = do_remove_conflicting_framebuffers(a, name, primary); mutex_unlock(®istration_lock); + + return ret; } EXPORT_SYMBOL(remove_conflicting_framebuffers); |