From: roel kluin <roel.kluin@gmail.com>
Date: Wed, 14 Oct 2009 05:32:28 +0000 (+0000)
Subject: powerpc/spufs: Fix test in spufs_switch_log_read()
X-Git-Tag: v2.6.33-rc1~293^2~55
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=17e376756169af818c2e1c230502167cd1571a6c;p=~shefty%2Frdma-dev.git

powerpc/spufs: Fix test in spufs_switch_log_read()

size_t len cannot be less than 0.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 884e8bcec49..64a4c2d85f7 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -2494,7 +2494,7 @@ static ssize_t spufs_switch_log_read(struct file *file, char __user *buf,
 	struct spu_context *ctx = SPUFS_I(inode)->i_ctx;
 	int error = 0, cnt = 0;
 
-	if (!buf || len < 0)
+	if (!buf)
 		return -EINVAL;
 
 	error = spu_acquire(ctx);