linux-kernel - Re: ocxl: fix signed comparison with less than zero

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Date:   Fri,  9 Feb 2018 15:00:33 +1100 (AEDT)
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Colin King <colin.king@...onical.com>,
        Frederic Barrat <fbarrat@...ux.vnet.ibm.com>,
        Andrew Donnellan <andrew.donnellan@....ibm.com>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linuxppc-dev@...ts.ozlabs.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: ocxl: fix signed comparison with less than zero

On Tue, 2018-01-30 at 15:11:44 UTC, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> Currently the comparison of used < 0 is always false because
> uses is a size_t. Fix this by making used a ssize_t type.
> 
> Detected by Coccinelle:
> drivers/misc/ocxl/file.c:320:6-10: WARNING: Unsigned expression
> compared with zero: used < 0
> 
> Fixes: 5ef3166e8a32 ("ocxl: Driver code for 'generic' opencapi devices")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> Acked-by: Andrew Donnellan <andrew.donnellan@....ibm.com>
> Acked-by: Frederic Barrat <fbarrat@...ux.vnet.ibm.com>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/dedab7f0d3137441a97fe7cf9b9ca5

cheers