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x86, tracehook: clean up implementation of syscall_get_error() 

The x86-tracehook code now contains this line in syscall_get_error():

	return error >= -4095L ? error : 0;

Hard-wiring a constant is not nice. Let's use the IS_ERR_VALUE macro
from linux/err.h instead.

Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
Cc: utrace-devel@redhat.com
Acked-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Petr Tesarik 2008-09-03 13:31:42 +02:00 committed by Ingo Molnar
parent 28c3cfd5fb
commit 4ab4ba32aa
1 changed files with 2 additions and 1 deletions
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3
include/asm-x86/syscall.h
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@ -14,6 +14,7 @@
#define _ASM_SYSCALL_H 1
#include <linux/sched.h>
#include <linux/err.h>
static inline long syscall_get_nr(struct task_struct *task,
struct pt_regs *regs)
@ -47,7 +48,7 @@ static inline long syscall_get_error(struct task_struct *task,
*/
error = (long) (int) error;
#endif
return error >= -4095L ? error : 0;
return IS_ERR_VALUE(error) ? error : 0;
}
static inline long syscall_get_return_value(struct task_struct *task,