diff options
| author | gibbs <gibbs@FreeBSD.org> | 2003-06-23 22:06:34 +0000 |
|---|---|---|
| committer | gibbs <gibbs@FreeBSD.org> | 2003-06-23 22:06:34 +0000 |
| commit | a1fca12a50290289d2e3e07795745e4879555a37 (patch) | |
| tree | 40dc6d86c5e48be40bfa05d17357730690845b98 | |
| parent | f0c290220a0d322d22ab9ae7f6fc24164ad033d0 (diff) | |
| download | FreeBSD-src-a1fca12a50290289d2e3e07795745e4879555a37.zip FreeBSD-src-a1fca12a50290289d2e3e07795745e4879555a37.tar.gz | |
Add parenthesis so that we get all of the bits all
of the contents of the CCSCBCTL register into our
local varaible. The other bits are used in later tests.
This avoids a potential deadlock in ahd_run_qoutfifo()
if we happen to catch the DMA engine in just the right
state.
| -rw-r--r-- | sys/dev/aic7xxx/aic79xx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/dev/aic7xxx/aic79xx.c b/sys/dev/aic7xxx/aic79xx.c index e43a75b..4e42413 100644 --- a/sys/dev/aic7xxx/aic79xx.c +++ b/sys/dev/aic7xxx/aic79xx.c @@ -37,7 +37,7 @@ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. * - * $Id: //depot/aic7xxx/aic7xxx/aic79xx.c#198 $ + * $Id: //depot/aic7xxx/aic7xxx/aic79xx.c#199 $ * * $FreeBSD$ */ @@ -378,7 +378,7 @@ ahd_flush_qoutfifo(struct ahd_softc *ahd) * Wait for any inprogress DMA to complete and clear DMA state * if this if for an SCB in the qinfifo. */ - while ((ccscbctl = ahd_inb(ahd, CCSCBCTL) & (CCARREN|CCSCBEN)) != 0) { + while (((ccscbctl = ahd_inb(ahd, CCSCBCTL)) & (CCARREN|CCSCBEN)) != 0) { if ((ccscbctl & (CCSCBDIR|CCARREN)) == (CCSCBDIR|CCARREN)) { if ((ccscbctl & ARRDONE) != 0) |
