diff options
| -rw-r--r-- | sys/dev/fxp/if_fxp.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/dev/fxp/if_fxp.c b/sys/dev/fxp/if_fxp.c index 5af7911..f89ee7b 100644 --- a/sys/dev/fxp/if_fxp.c +++ b/sys/dev/fxp/if_fxp.c @@ -1011,6 +1011,15 @@ fxp_intr(void *xsc) while ((statack = CSR_READ_1(sc, FXP_CSR_SCB_STATACK)) != 0) { /* + * It should not be possible to have all bits set; the + * FXP_SCB_INTR_SWI bit always returns 0 on a read. If + * all bits are set, this may indicate that the card has + * been physically ejected, so ignore it. + */ + if (statack == 0xff) + return; + + /* * First ACK all the interrupts in this pass. */ CSR_WRITE_1(sc, FXP_CSR_SCB_STATACK, statack); |
