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Commit c895305e authored by Emil Goode's avatar Emil Goode Committed by Florian Tobias Schandinat
Browse files

video: bfin_adv7393fb: Fix cleanup code 



This patch fixes the cleanup code of the bfin_adv7393_fb_probe
function.

1) The resources were not freed in the order that we allocated them
   so we call dma_free_coherent() before it was allocated.
2) The labels weren't in the right place which also meant that we
   freed resources that weren't allocated.
3) We should free gpio_free(P_IDENT(P_PPI0_FS3)) before returning.
4) Lets change the label names into something more meaningful.

Signed-off-by: default avatarEmil Goode <emilgoode@gmail.com>
Acked-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>
parent ddbcb289

drivers/video/bfin_adv7393fb.c

+23 −20
Original line number Diff line number Diff line
@@ -414,14 +414,14 @@ static int __devinit bfin_adv7393_fb_probe(struct i2c_client *client, 
		if (ret) {

			dev_err(&client->dev, "PPI0_FS3 GPIO request failed\n");

			ret = -EBUSY;

			goto out_8;

			goto free_fbdev;

		}

	}



	if (peripheral_request_list(ppi_pins, DRIVER_NAME)) {

		dev_err(&client->dev, "requesting PPI peripheral failed\n");

		ret = -EFAULT;

		goto out_8;

		goto free_gpio;

	}



	fbdev->fb_mem =
@@ -432,7 +432,7 @@ static int __devinit bfin_adv7393_fb_probe(struct i2c_client *client, 
		dev_err(&client->dev, "couldn't allocate dma buffer (%d bytes)\n",

		       (u32) fbdev->fb_len);

		ret = -ENOMEM;

		goto out_7;

		goto free_ppi_pins;

	}



	fbdev->info.screen_base = (void *)fbdev->fb_mem;
@@ -464,27 +464,27 @@ static int __devinit bfin_adv7393_fb_probe(struct i2c_client *client, 
	if (!fbdev->info.pseudo_palette) {

		dev_err(&client->dev, "failed to allocate pseudo_palette\n");

		ret = -ENOMEM;

		goto out_6;

		goto free_fb_mem;

	}



	if (fb_alloc_cmap(&fbdev->info.cmap, BFIN_LCD_NBR_PALETTE_ENTRIES, 0) < 0) {

		dev_err(&client->dev, "failed to allocate colormap (%d entries)\n",

			   BFIN_LCD_NBR_PALETTE_ENTRIES);

		ret = -EFAULT;

		goto out_5;

		goto free_palette;

	}



	if (request_dma(CH_PPI, "BF5xx_PPI_DMA") < 0) {

		dev_err(&client->dev, "unable to request PPI DMA\n");

		ret = -EFAULT;

		goto out_4;

		goto free_cmap;

	}



	if (request_irq(IRQ_PPI_ERROR, ppi_irq_error, 0,

			"PPI ERROR", fbdev) < 0) {

		dev_err(&client->dev, "unable to request PPI ERROR IRQ\n");

		ret = -EFAULT;

		goto out_3;

		goto free_ch_ppi;

	}



	fbdev->open = 0;
@@ -494,14 +494,14 @@ static int __devinit bfin_adv7393_fb_probe(struct i2c_client *client, 


	if (ret) {

		dev_err(&client->dev, "i2c attach: init error\n");

		goto out_1;

		goto free_irq_ppi;

	}





	if (register_framebuffer(&fbdev->info) < 0) {

		dev_err(&client->dev, "unable to register framebuffer\n");

		ret = -EFAULT;

		goto out_1;

		goto free_irq_ppi;

	}



	dev_info(&client->dev, "fb%d: %s frame buffer device\n",
@@ -512,7 +512,7 @@ static int __devinit bfin_adv7393_fb_probe(struct i2c_client *client, 
	if (!entry) {

		dev_err(&client->dev, "unable to create /proc entry\n");

		ret = -EFAULT;

		goto out_0;

		goto free_fb;

	}



	entry->read_proc = adv7393_read_proc;
@@ -521,22 +521,25 @@ static int __devinit bfin_adv7393_fb_probe(struct i2c_client *client, 


	return 0;



 out_0:

free_fb:

	unregister_framebuffer(&fbdev->info);

 out_1:

free_irq_ppi:

	free_irq(IRQ_PPI_ERROR, fbdev);

 out_3:

free_ch_ppi:

	free_dma(CH_PPI);

 out_4:

	dma_free_coherent(NULL, fbdev->fb_len, fbdev->fb_mem,

			  fbdev->dma_handle);

 out_5:

free_cmap:

	fb_dealloc_cmap(&fbdev->info.cmap);

 out_6:

free_palette:

	kfree(fbdev->info.pseudo_palette);

 out_7:

free_fb_mem:

	dma_free_coherent(NULL, fbdev->fb_len, fbdev->fb_mem,

			  fbdev->dma_handle);

free_ppi_pins:

	peripheral_free_list(ppi_pins);

 out_8:

free_gpio:

	if (ANOMALY_05000400)

		gpio_free(P_IDENT(P_PPI0_FS3));

free_fbdev:

	kfree(fbdev);



	return ret;