[PATCH 3/5] drivers/video/cobalt_lcdfb.c: use devm_ functions

From: Damien Cassou
Date: Tue Jul 31 2012 - 09:55:52 EST


From: Damien Cassou <damien.cassou@xxxxxxx>

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.cassou@xxxxxxx>

---
drivers/video/cobalt_lcdfb.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/video/cobalt_lcdfb.c b/drivers/video/cobalt_lcdfb.c
index eae46f6..01a4ee7 100644
--- a/drivers/video/cobalt_lcdfb.c
+++ b/drivers/video/cobalt_lcdfb.c
@@ -348,7 +348,8 @@ static int __devinit cobalt_lcdfb_probe(struct platform_device *dev)
}

info->screen_size = resource_size(res);
- info->screen_base = ioremap(res->start, info->screen_size);
+ info->screen_base = devm_ioremap(&dev->dev, res->start,
+ info->screen_size);
info->fbops = &cobalt_lcd_fbops;
info->fix = cobalt_lcdfb_fix;
info->fix.smem_start = res->start;
@@ -359,7 +360,6 @@ static int __devinit cobalt_lcdfb_probe(struct platform_device *dev)

retval = register_framebuffer(info);
if (retval < 0) {
- iounmap(info->screen_base);
framebuffer_release(info);
return retval;
}
@@ -380,7 +380,6 @@ static int __devexit cobalt_lcdfb_remove(struct platform_device *dev)

info = platform_get_drvdata(dev);
if (info) {
- iounmap(info->screen_base);
unregister_framebuffer(info);
framebuffer_release(info);
}

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/