From: Damien Cassou <damien.cas...@lifl.fr>
The various devm_ functions allocate memory that is released when a driver
detaches. This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.
Signed-off-by: Damien Cassou <damien.cas...@lifl.fr>
---
drivers/video/bfin-t350mcqb-fb.c | 28 +++++++++-------------------
1 file changed, 9 insertions(+), 19 deletions(-)
diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c
index 7a0c05f..43e0d1b 100644
--- a/drivers/video/bfin-t350mcqb-fb.c
+++ b/drivers/video/bfin-t350mcqb-fb.c
@@ -490,9 +490,10 @@ static int __devinit bfin_t350mcqb_probe(struct
platform_device *pdev)
fbinfo->fbops = &bfin_t350mcqb_fb_ops;
fbinfo->flags = FBINFO_FLAG_DEFAULT;
- info->fb_buffer = dma_alloc_coherent(NULL, fbinfo->fix.smem_len +
- ACTIVE_VIDEO_MEM_OFFSET,
- &info->dma_handle, GFP_KERNEL);
+ info->fb_buffer = dmam_alloc_coherent(&pdev->dev, NULL,
+ fbinfo->fix.smem_len +
+ ACTIVE_VIDEO_MEM_OFFSET,
+ &info->dma_handle, GFP_KERNEL);
if (NULL == info->fb_buffer) {
printk(KERN_ERR DRIVER_NAME
@@ -514,7 +515,7 @@ static int __devinit bfin_t350mcqb_probe(struct
platform_device *pdev)
"Fail to allocate colormap (%d entries)\n",
BFIN_LCD_NBR_PALETTE_ENTRIES);
ret = -EFAULT;
- goto out4;
+ goto out3;
}
if (bfin_t350mcqb_request_ports(1)) {
@@ -529,8 +530,8 @@ static int __devinit bfin_t350mcqb_probe(struct
platform_device *pdev)
goto out7;
}
- ret = request_irq(info->irq, bfin_t350mcqb_irq_error, 0,
- "PPI ERROR", info);
+ ret = devm_request_irq(&pdev->dev, info->irq, bfin_t350mcqb_irq_error,
+ 0, "PPI ERROR", info);
if (ret < 0) {
printk(KERN_ERR DRIVER_NAME
": unable to request PPI ERROR IRQ\n");
@@ -541,7 +542,7 @@ static int __devinit bfin_t350mcqb_probe(struct
platform_device *pdev)
printk(KERN_ERR DRIVER_NAME
": unable to register framebuffer.\n");
ret = -EINVAL;
- goto out8;
+ goto out7;
}
#ifndef NO_BL_SUPPORT
memset(&props, 0, sizeof(struct backlight_properties));
@@ -554,7 +555,7 @@ static int __devinit bfin_t350mcqb_probe(struct
platform_device *pdev)
": unable to register backlight.\n");
ret = -EINVAL;
unregister_framebuffer(fbinfo);
- goto out8;
+ goto out7;
}
lcd_dev = lcd_device_register(DRIVER_NAME, NULL, &bfin_lcd_ops);
@@ -563,15 +564,10 @@ static int __devinit bfin_t350mcqb_probe(struct
platform_device *pdev)
return 0;
-out8:
- free_irq(info->irq, info);
out7:
bfin_t350mcqb_request_ports(0);
out6:
fb_dealloc_cmap(&fbinfo->cmap);
-out4:
- dma_free_coherent(NULL, fbinfo->fix.smem_len + ACTIVE_VIDEO_MEM_OFFSET,
- info->fb_buffer, info->dma_handle);
out3:
framebuffer_release(fbinfo);
out2:
@@ -591,12 +587,6 @@ static int __devexit bfin_t350mcqb_remove(struct
platform_device *pdev)
unregister_framebuffer(fbinfo);
free_dma(CH_PPI);
- free_irq(info->irq, info);
-
- if (info->fb_buffer != NULL)
- dma_free_coherent(NULL, fbinfo->fix.smem_len +
- ACTIVE_VIDEO_MEM_OFFSET, info->fb_buffer,
- info->dma_handle);
fb_dealloc_cmap(&fbinfo->cmap);
--
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