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Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/drm_fb_helper.c29
1 files changed, 15 insertions, 14 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 535c2cadf4d1..e0d4b04c0eb5 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -752,10 +752,14 @@ int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
}
EXPORT_SYMBOL(drm_fb_helper_pan_display);
+/*
+ * Allocates the backing storage through the ->fb_probe callback and then
+ * registers the fbdev and sets up the panic notifier.
+ */
static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
int preferred_bpp)
{
- int new_fb = 0;
+ int ret = 0;
int crtc_count = 0;
int i;
struct fb_info *info;
@@ -833,9 +837,9 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
}
/* push down into drivers */
- new_fb = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes);
- if (new_fb < 0)
- return new_fb;
+ ret = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes);
+ if (ret < 0)
+ return ret;
info = fb_helper->fbdev;
@@ -851,15 +855,12 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
fb_helper->crtc_info[i].mode_set.fb = fb_helper->fb;
- if (new_fb) {
- info->var.pixclock = 0;
- if (register_framebuffer(info) < 0)
- return -EINVAL;
-
- dev_info(fb_helper->dev->dev, "fb%d: %s frame buffer device\n",
- info->node, info->fix.id);
+ info->var.pixclock = 0;
+ if (register_framebuffer(info) < 0)
+ return -EINVAL;
- }
+ dev_info(fb_helper->dev->dev, "fb%d: %s frame buffer device\n",
+ info->node, info->fix.id);
/* Switch back to kernel console on panic */
/* multi card linked list maybe */
@@ -869,8 +870,8 @@ static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,
&paniced);
register_sysrq_key('v', &sysrq_drm_fb_helper_restore_op);
}
- if (new_fb)
- list_add(&fb_helper->kernel_fb_list, &kernel_fb_helper_list);
+
+ list_add(&fb_helper->kernel_fb_list, &kernel_fb_helper_list);
return 0;
}