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staging/ipack: Fix bug introduced by IPack device matching

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~0 can not be 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@oracle.com>
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Acked-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jens Taprogge 2012-09-07 10:29:19 +02:00 • committed by Greg Kroah-Hartman
parent 7953e44cef
commit 5948ae27fb
3 changed files with 4 additions and 2 deletions
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1
include/linux/mod_devicetable.h
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@ -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 */