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video: pxa3xx-gcu: Return -EFAULT when copy_from_user() fails

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Return -EFAULT instead of number of bytes that could not be copied if
copy_from_user() fails.

Also fix a typo in the comments.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
axel lin 2011-01-14 09:39:11 +00:00 committed by Paul Mundt
parent 6c9571f4b7
commit 0b7f1cc79d
1 changed files with 2 additions and 2 deletions
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4
drivers/video/pxa3xx-gcu.c
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@ -1,5 +1,5 @@
/*
* pxa3xx-gc.c - Linux kernel module for PXA3xx graphics controllers
* pxa3xx-gcu.c - Linux kernel module for PXA3xx graphics controllers
*
* This driver needs a DirectFB counterpart in user space, communication
* is handled via mmap()ed memory areas and an ioctl.
@ -421,7 +421,7 @@ pxa3xx_gcu_misc_write(struct file *filp, const char *buff,
buffer->next = priv->free;
priv->free = buffer;
spin_unlock_irqrestore(&priv->spinlock, flags);
return ret;
return -EFAULT;
}
buffer->length = words;