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amd-xgbe: Fix debugfs compatibility change with kstrtouint

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The initial change from sscanf to kstrtouint broke backward
compatbility by using a base of "0" in the kstrtouint call.
This allowed for entering decimal, hexadecimal or octal as
input where previously the sscanf always interpreted the input
as hexadecimal.  Additionally, -EIO was returned on error prior
to this change and now it is whatever the error value that is
returned by kstrtouint.

Change the base value of the kstrtouint from 0 to 16 and return
-EIO on error.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lendacky, Thomas 2014-07-02 13:04:28 -05:00 committed by David S. Miller
parent db55b62cab
commit f3f128d40c
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c
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@ -165,9 +165,9 @@ static ssize_t xgbe_common_write(const char __user *buffer, size_t count,
return len;
workarea[len] = '\0';
ret = kstrtouint(workarea, 0, value);
ret = kstrtouint(workarea, 16, value);
if (ret)
return ret;
return -EIO;
return len;
}