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: Emil Goode <emilgoode@gmail.com>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>

diff --git a/drivers/video/bfin_adv7393fb.c b/drivers/video/bfin_adv7393fb.c
index 1a268a2..33ea874 100644 (file)
--- a/drivers/video/bfin_adv7393fb.c
+++ b/drivers/video/bfin_adv7393fb.c
@@ -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;