tree ad58c82f7a16104c08f965f8ce2640ea8f3545bb
parent 322a95bc8eba889d2f9d7222936d682c9aad8294
author Duncan Sands <[EMAIL PROTECTED]> Thu, 23 Jun 2005 09:23:10 +0200
committer Greg Kroah-Hartman <[EMAIL PROTECTED]> Wed, 13 Jul 2005 01:52:55 -0700
[PATCH] USB ATM: robustify poll throttling
No functional change, but less likely to break in the future.
Signed-off-by: Duncan Sands <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
drivers/usb/atm/speedtch.c | 6 ++----
1 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c
--- a/drivers/usb/atm/speedtch.c
+++ b/drivers/usb/atm/speedtch.c
@@ -430,13 +430,11 @@ static void speedtch_check_status(struct
ret = speedtch_read_status(instance);
if (ret < 0) {
atm_warn(usbatm, "error %d fetching device status\n", ret);
- if (instance->poll_delay < MAX_POLL_DELAY)
- instance->poll_delay *= 2;
+ instance->poll_delay = min(2 * instance->poll_delay,
MAX_POLL_DELAY);
return;
}
- if (instance->poll_delay > MIN_POLL_DELAY)
- instance->poll_delay /= 2;
+ instance->poll_delay = max(instance->poll_delay / 2, MIN_POLL_DELAY);
atm_dbg(usbatm, "%s: line state %02x\n", __func__, buf[OFFSET_7]);
-
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