Re: [PATCH] staging/ipack: Fix bug introduced by IPack device matching

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On Thu, Sep 06, 2012 at 06:53:14PM +0200, Samuel Iglesias Gonsálvez wrote:
> On 09/06/2012 06:17 PM, Jens Taprogge wrote:
> > ~0 is not casted to u8.  Instead of using the IPACK_ANY_ID for the 
> > format field we introduce a new IPACK_ANY_FORMAT specifically for
> > that field and defined as 0xff.
> > 
> > Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> 
> > Signed-off-by: Jens Taprogge <jens.taprogge@xxxxxxxxxxxx> --- 
> > drivers/staging/ipack/ipack.c   |    3 ++- 
> > include/linux/mod_devicetable.h |    1 + 2 files changed, 3
> > insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/staging/ipack/ipack.c
> > b/drivers/staging/ipack/ipack.c index b3736c0..659aadc 100644 ---
> > a/drivers/staging/ipack/ipack.c +++
> > b/drivers/staging/ipack/ipack.c @@ -31,7 +31,8 @@ static inline
> > const struct ipack_device_id * ipack_match_one_device(const struct
> > ipack_device_id *id, const struct ipack_device *device) { -	if
> > ((id->format == IPACK_ANY_ID || id->format == device->id_format)
> > && +	if ((id->format == IPACK_ANY_FORMAT || +				id->format ==
> > device->id_format) && (id->vendor == IPACK_ANY_ID || id->vendor ==
> > device->id_vendor) && (id->device == IPACK_ANY_ID || id->device ==
> > device->id_device)) return id; diff --git
> > a/include/linux/mod_devicetable.h
> > b/include/linux/mod_devicetable.h index 999c4c2..70c6a35 100644 ---
> > a/include/linux/mod_devicetable.h +++
> > b/include/linux/mod_devicetable.h @@ -600,6 +600,7 @@ struct
> > x86_cpu_id { #define X86_MODEL_ANY  0 #define X86_FEATURE_ANY 0	/*
> > Same as FPU, you can't test for that */
> > 
> > +#define IPACK_ANY_FORMAT 0xff #define IPACK_ANY_ID (~0) struct
> > ipack_device_id { __u8  format;			/* Format version or IPACK_ANY_ID
> > */
> > 
> 
> Acked-by: Samuel Iglesias Gons�lvez <siglesias@xxxxxxxxxx>

Jens, can you resend this and cc: me so that I can properly apply it?

thanks,

greg k-h
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