hpilo: open/close fix

The device can take a while to respond to an open/close request, so
increase the time kernel will wait for response (1 ms to 10ms).

Also, properly clean up a channel on a failed open, by calling the channel
close routine.  Just freeing the memory isn't sufficient, the device needs
to be informed that the channel is no longer open, and the device memory
cleared of references to freed dma buffer.

Signed-off-by: David Altobelli <david.altobelli@hp.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/misc/hpilo.c b/drivers/misc/hpilo.c
index 10c421b73eaf95d3d8e9deb1b793868426d3430d..f26667a7abf7c6ce0e7a3a911d7bb193f2489859 100644 (file)
--- a/drivers/misc/hpilo.c
+++ b/drivers/misc/hpilo.c
@@ -207,7 +207,7 @@ static void ilo_ccb_close(struct pci_dev *pdev, struct ccb_data *data)
                  &device_ccb->recv_ctrl);
 
        /* give iLO some time to process stop request */
-       for (retries = 1000; retries > 0; retries--) {
+       for (retries = MAX_WAIT; retries > 0; retries--) {
                doorbell_set(driver_ccb);
                udelay(1);
                if (!(ioread32(&device_ccb->send_ctrl) & (1 << CTRL_BITPOS_A))
@@ -309,7 +309,7 @@ static int ilo_ccb_open(struct ilo_hwinfo *hw, struct ccb_data *data, int slot)
        doorbell_clr(driver_ccb);
 
        /* make sure iLO is really handling requests */
-       for (i = 1000; i > 0; i--) {
+       for (i = MAX_WAIT; i > 0; i--) {
                if (ilo_pkt_dequeue(hw, driver_ccb, SENDQ, &pkt_id, NULL, NULL))
                        break;
                udelay(1);
@@ -326,7 +326,7 @@ static int ilo_ccb_open(struct ilo_hwinfo *hw, struct ccb_data *data, int slot)
 
        return 0;
 free:
-       pci_free_consistent(pdev, data->dma_size, data->dma_va, data->dma_pa);
+       ilo_ccb_close(pdev, data);
 out:
        return error;
 }

diff --git a/drivers/misc/hpilo.h b/drivers/misc/hpilo.h
index a281207696c1b8286f5c9ee08e7f24b504647a61..b64a20ef07e3cc6e7280386b5dc462233e1fd99a 100644 (file)
--- a/drivers/misc/hpilo.h
+++ b/drivers/misc/hpilo.h
@@ -19,6 +19,8 @@
 #define MAX_ILO_DEV    1
 /* max number of files */
 #define MAX_OPEN       (MAX_CCB * MAX_ILO_DEV)
+/* spin counter for open/close delay */
+#define MAX_WAIT       10000
 
 /*
  * Per device, used to track global memory allocations.