[RFC][PATCH] omapfb: Reorder Register_framebuffer call

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From: Sergio Aguirre <saaguirre@xxxxxx>

This fixes the issue in which mm_lock mutex was attempted to be
used without initializing previously.

Signed-off-by: Sergio Aguirre <saaguirre@xxxxxx>
---
 drivers/video/omap/omapfb_main.c |   20 +++++++++++---------
 1 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c
index 125e605..60f9482 100644
--- a/drivers/video/omap/omapfb_main.c
+++ b/drivers/video/omap/omapfb_main.c
@@ -1503,12 +1503,21 @@ static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info)
 	var->rotate	  = def_rotate;
 	var->bits_per_pixel = fbdev->panel->bpp;
 
+	r = register_framebuffer(info);
+	if (r != 0) {
+		dev_err(fbdev->dev,
+			"registering framebuffer failed\n");
+		return r;
+	}
+
 	set_fb_var(info, var);
 	set_fb_fix(info);
 
 	r = fb_alloc_cmap(&info->cmap, 16, 0);
-	if (r != 0)
+	if (r != 0) {
 		dev_err(fbdev->dev, "unable to allocate color map memory\n");
+		unregister_framebuffer(info);
+	}
 
 	return r;
 }
@@ -1773,15 +1782,8 @@ static int omapfb_do_probe(struct platform_device *pdev,
 	init_state++;
 
 	vram = 0;
-	for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
-		r = register_framebuffer(fbdev->fb_info[i]);
-		if (r != 0) {
-			dev_err(fbdev->dev,
-				"registering framebuffer %d failed\n", i);
-			goto cleanup;
-		}
+	for (i = 0; i < fbdev->mem_desc.region_cnt; i++)
 		vram += fbdev->mem_desc.region[i].size;
-	}
 
 	fbdev->state = OMAPFB_ACTIVE;
 
-- 
1.6.3.2

Attachment: 0001-omapfb-Reorder-Register_framebuffer-call.patch
Description: 0001-omapfb-Reorder-Register_framebuffer-call.patch


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