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Don't validate buffer size for tape I/O, this is already done by 

the tape driver. Using MAXBSIZE as limit was also wrong on sun2 where
MAXBSIZE < MAXPHYS.
This commit is contained in:
mlelstv 2019-04-04 12:26:45 +00:00
parent 8e1d2c5acd
commit 1cf61a72f9
1 changed files with 2 additions and 9 deletions
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11
sys/kern/kern_physio.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: kern_physio.c,v 1.94 2019/03/26 09:33:58 mlelstv Exp $ */
/* $NetBSD: kern_physio.c,v 1.95 2019/04/04 12:26:45 mlelstv Exp $ */
/*-
* Copyright (c) 1982, 1986, 1990, 1993
@ -71,7 +71,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_physio.c,v 1.94 2019/03/26 09:33:58 mlelstv Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_physio.c,v 1.95 2019/04/04 12:26:45 mlelstv Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -317,13 +317,6 @@ physio(void (*strategy)(struct buf *), struct buf *obp, dev_t dev, int flags,
*/
bp->b_bcount = MIN(MAXPHYS, iovp->iov_len);
} else {
/*
* Verify that buffer can handle size
*/
if (iovp->iov_len > MAXBSIZE) {
error = EINVAL;
goto done;
}
bp->b_bcount = iovp->iov_len;
}
bp->b_data = iovp->iov_base;