* + ip2-return-efault-on-copy_to_user-errors.patch added to -mm tree
@ 2010-08-12 20:48 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2010-08-12 20:48 UTC (permalink / raw)
To: mm-commits; +Cc: error27, greg, mhw
The patch titled
ip2: return -EFAULT on copy_to_user errors
has been added to the -mm tree. Its filename is
ip2-return-efault-on-copy_to_user-errors.patch
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------------------------------------------------------
Subject: ip2: return -EFAULT on copy_to_user errors
From: Dan Carpenter <error27@gmail.com>
copy_to_user() returns the number of bytes remaining but we want to return
a negative error code on errors.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: "Michael H. Warfield" <mhw@wittsend.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
drivers/char/ip2/ip2main.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN drivers/char/ip2/ip2main.c~ip2-return-efault-on-copy_to_user-errors drivers/char/ip2/ip2main.c
--- a/drivers/char/ip2/ip2main.c~ip2-return-efault-on-copy_to_user-errors
+++ a/drivers/char/ip2/ip2main.c
@@ -2930,6 +2930,8 @@ ip2_ipl_ioctl (struct file *pFile, UINT
if ( pCh )
{
rc = copy_to_user(argp, pCh, sizeof(i2ChanStr));
+ if (rc)
+ rc = -EFAULT;
} else {
rc = -ENODEV;
}
_
Patches currently in -mm which might be from error27@gmail.com are
origin.patch
linux-next.patch
ip2-remove-unneeded-null-check.patch
ip2-return-efault-on-copy_to_user-errors.patch
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2010-08-12 20:48 + ip2-return-efault-on-copy_to_user-errors.patch added to -mm tree akpm
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