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From: Roel Kluin <roel.kluin@gmail•com>
To: Arnd Bergmann <arndbergmann@googlemail•com>
Cc: cbe-oss-dev@lists•ozlabs.org, linuxppc-dev@ozlabs•org,
	Jeremy Kerr <jk@ozlabs•org>,
	Andrew Morton <akpm@linux-foundation•org>,
	linuxppc-dev@lists•ozlabs.org, cbe-oss-dev@ozlabs•org
Subject: Re: [Cbe-oss-dev] [PATCH] spufs: Fix test in spufs_switch_log_read()
Date: Wed, 14 Oct 2009 17:32:28 +0200	[thread overview]
Message-ID: <4AD5EF0C.9050603@gmail.com> (raw)
In-Reply-To: <200910131531.45726.arnd@arndb.de>

size_t len cannot be less than 0.

Signed-off-by: Roel Kluin <roel.kluin@gmail•com>
---
>>> Or can this test be removed?
>>
>> I'd prefer just to remove the test.
> 
> Yes, sounds good.

If you meant only the left-hand part, here you go:

diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 884e8bc..64a4c2d 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);

  reply	other threads:[~2009-10-14 15:32 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-12 13:12 [PATCH] spufs: Fix test in spufs_switch_log_read() Roel Kluin
2009-10-13  0:49 ` [Cbe-oss-dev] " Jeremy Kerr
2009-10-13 13:31   ` Arnd Bergmann
2009-10-14 15:32     ` Roel Kluin [this message]
2009-11-24  0:24       ` Jeremy Kerr

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