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Fix list corruption and memory leak that could occur when

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releasing EISA irqs.
This commit is contained in:
gibbs 1998-05-14 19:47:38 +00:00
parent 6fa0b8e344
commit 371d0dd23e
2 changed files with 12 additions and 4 deletions
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8
sys/dev/eisa/eisaconf.c
View File

@ -28,7 +28,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: eisaconf.c,v 1.33 1997/11/07 08:52:24 phk Exp $
* $Id: eisaconf.c,v 1.34 1998/02/09 06:08:09 eivind Exp $
*/
#include "opt_eisa.h"
@ -452,10 +452,14 @@ eisa_release_intr(e_dev, irq, func)
cur_irq = TAILQ_FIRST(&e_dev->ioconf.irqs);
while (cur_irq != NULL) {
if (cur_irq->irq_no == irq) {
struct irq_node *next_irq;
next_irq = TAILQ_NEXT(cur_irq, links);
if (cur_irq->idesc != NULL)
intr_destroy(cur_irq->idesc);
cur_irq = TAILQ_NEXT(cur_irq, links);
TAILQ_REMOVE(&e_dev->ioconf.irqs, cur_irq, links);
free(cur_irq, M_DEVBUF);
cur_irq = next_irq;
result = 0;
} else {
cur_irq = TAILQ_NEXT(cur_irq, links);

8
sys/i386/eisa/eisaconf.c
View File

@ -28,7 +28,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: eisaconf.c,v 1.33 1997/11/07 08:52:24 phk Exp $
* $Id: eisaconf.c,v 1.34 1998/02/09 06:08:09 eivind Exp $
*/
#include "opt_eisa.h"
@ -452,10 +452,14 @@ eisa_release_intr(e_dev, irq, func)
cur_irq = TAILQ_FIRST(&e_dev->ioconf.irqs);
while (cur_irq != NULL) {
if (cur_irq->irq_no == irq) {
struct irq_node *next_irq;
next_irq = TAILQ_NEXT(cur_irq, links);
if (cur_irq->idesc != NULL)
intr_destroy(cur_irq->idesc);
cur_irq = TAILQ_NEXT(cur_irq, links);
TAILQ_REMOVE(&e_dev->ioconf.irqs, cur_irq, links);
free(cur_irq, M_DEVBUF);
cur_irq = next_irq;
result = 0;
} else {
cur_irq = TAILQ_NEXT(cur_irq, links);