Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

copy{in,out} and kcopy should return success if 'len' is zero.

Browse Source
This commit is contained in:
scw 2003-08-12 13:51:52 +00:00
parent 8d5dbf5382
commit 10e88b305a
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
sys/arch/sh5/sh5/locore_subr.S
View File

@ -1,4 +1,4 @@
/* $NetBSD: locore_subr.S,v 1.18 2003/03/19 11:34:28 scw Exp $ */
/* $NetBSD: locore_subr.S,v 1.19 2003/08/12 13:51:52 scw Exp $ */
/*
* Copyright 2002 Wasabi Systems, Inc.
@ -348,6 +348,7 @@ ENTRY(copyout)
add r18, r63, r61
#endif
movi EFAULT, r60 /* Assume there was a problem */
cmveq r4, r63, r60 /* But return success if len == 0 */
pta/u Lcopyexit, tr1
bge/u r63, r4, tr1 /* Return EFAULT if len <= 0 */
@ -414,6 +415,7 @@ ENTRY(copyin)
add r18, r63, r61
#endif
movi EFAULT, r60 /* Assume there was a problem */
cmveq r4, r63, r60 /* But return success if len == 0 */
pta/u Lcopyexit, tr1
bge/u r63, r4, tr1 /* Return EFAULT if len <= 0 */
@ -631,6 +633,7 @@ ENTRY(kcopy)
add r18, r63, r61
#endif
movi EFAULT, r60 /* Assume there was a problem */
cmveq r4, r63, r60 /* But return success if len == 0 */
pta/u Lkcopyexit, tr1
bge/u r63, r4, tr1 /* Return EFAULT if len <= 0 */