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From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Jeff LaBundy <jeff@labundy.com>,
	linux-input@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [PATCH] Input: iqs7222 - propagate some error codes correctly
Date: Sun, 17 Apr 2022 13:04:33 -0700	[thread overview]
Message-ID: <Ylxy0fnZ0lNSWzxh@google.com> (raw)
In-Reply-To: <20220412153954.GA15406@kili>

On Tue, Apr 12, 2022 at 06:39:54PM +0300, Dan Carpenter wrote:
> If fwnode_property_count_u32() returns a negative error code then,
> because of type promotion, the "count > ARRAY_SIZE(pins)" condition
> will be true.  The negative "count" is type promoted to a high unsigned
> size_t value.
> 
> That means the "else if (count < 0)" condition will always be false and
> we don't print that error message or propagate the error code from
> fwnode_property_count_u32() as intended.
> 
> Fix this by re-ordering the checks so that we check for negative first.
> 
> Fixes: e505edaedcb9 ("Input: add support for Azoteq IQS7222A/B/C")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Applied, thank you.

-- 
Dmitry

  reply	other threads:[~2022-04-17 20:04 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-12 15:39 [PATCH] Input: iqs7222 - propagate some error codes correctly Dan Carpenter
2022-04-17 20:04 ` Dmitry Torokhov [this message]
2022-04-17 20:10   ` Jeff LaBundy

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