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

Eliminate a race condition reported by mouse on port-sparc.

This commit is contained in:
pk 2000-06-14 08:01:26 +00:00
parent 7dca1ce955
commit f67e2cd132
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sys/dev/sbus/bpp.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: bpp.c,v 1.3 1999/11/21 15:01:50 pk Exp $ */
/* $NetBSD: bpp.c,v 1.4 2000/06/14 08:01:26 pk Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -301,7 +301,7 @@ bppwrite(dev, uio, flags)
int s;
/*
* Wait until the DMA engibe is free.
* Wait until the DMA engine is free.
*/
s = splbpp();
while ((sc->sc_flags & BPP_LOCKED) != 0) {
@ -344,14 +344,18 @@ bppwrite(dev, uio, flags)
L64854_REG_TCR, tcr);
/* Enable DMA */
s = splbpp();
DMA_GO(lsi);
error = tsleep(sc, PZERO|PCATCH, "bppdma", 0);
splx(s);
if (error != 0)
goto out;
/* Bail out if bottom half reported an error */
if ((error = sc->sc_error) != 0)
goto out;
len -= size;
}
}