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authorBryan O'Sullivan <bos@pathscale.com>2006-08-25 11:24:46 -0700
committerRoland Dreier <rolandd@cisco.com>2006-09-22 15:22:39 -0700
commite35d710d0c5b74bc9833d6a3791706bd577a3724 (patch)
tree3bb24378144082c7f521e83194d027914c65afbc
parentd821f02a6ebed97e35e0bc7575452cfc6f9073cb (diff)
downloadblackbird-op-linux-e35d710d0c5b74bc9833d6a3791706bd577a3724.tar.gz
blackbird-op-linux-e35d710d0c5b74bc9833d6a3791706bd577a3724.zip
IB/ipath: fix return value from ipath_poll
This stops the generic poll code from waiting for a timeout. Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
-rw-r--r--drivers/infiniband/hw/ipath/ipath_file_ops.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c
index 6ba9a2d1e6ec..29930e22318e 100644
--- a/drivers/infiniband/hw/ipath/ipath_file_ops.c
+++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c
@@ -1150,6 +1150,7 @@ static unsigned int ipath_poll(struct file *fp,
struct ipath_portdata *pd;
u32 head, tail;
int bit;
+ unsigned pollflag = 0;
struct ipath_devdata *dd;
pd = port_fp(fp);
@@ -1186,9 +1187,12 @@ static unsigned int ipath_poll(struct file *fp,
clear_bit(IPATH_PORT_WAITING_RCV, &pd->port_flag);
pd->port_rcvwait_to++;
}
+ else
+ pollflag = POLLIN | POLLRDNORM;
}
else {
/* it's already happened; don't do wait_event overhead */
+ pollflag = POLLIN | POLLRDNORM;
pd->port_rcvnowait++;
}
@@ -1196,7 +1200,7 @@ static unsigned int ipath_poll(struct file *fp,
ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvctrl,
dd->ipath_rcvctrl);
- return 0;
+ return pollflag;
}
static int try_alloc_port(struct ipath_devdata *dd, int port,
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