From: axel lin <axel.lin@gmail.com>
Date: Fri, 14 Jan 2011 09:39:11 +0000 (+0000)
Subject: video: pxa3xx-gcu: Return -EFAULT when copy_from_user() fails
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0b7f1cc79d61427961e311c6a21f528bdb226e40;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

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

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>
---

diff --git a/drivers/video/pxa3xx-gcu.c b/drivers/video/pxa3xx-gcu.c
index b81168df253d..cf4beb9dc9bb 100644
--- a/drivers/video/pxa3xx-gcu.c
+++ b/drivers/video/pxa3xx-gcu.c
@@ -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;