Messages in this thread | | | Date | Tue, 27 Apr 2010 22:17:05 -0400 | From | Andrew Morton <> | Subject | Re: [PATCH 1/2 v2] MMC:Add support MMCIF for SuperH |
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On Wed, 28 Apr 2010 14:06:08 +0900 Yusuke Goda <yusuke.goda.sx@renesas.com> wrote:
> + time = wait_event_interruptible_timeout(host->intr_wait, > + host->wait_int == 1 || > + host->sd_error == 1, host->timeout); > + if (host->wait_int != 1 && (time == 0 || host->sd_error != 0)) > + return sh_mmcif_error_manage(host);
wait_event_interruptible_timeout() will return early with -ERESTARTSYS if the calling process gets signalled (eg, ^C was hit).
The driver uses wait_event_interruptible_timeout() rather a lot and the two sites I looked at seem to handle the signal_pending() case correctly.
But incorrectly handling signals with interruptible waits is a frequently-occurring error in drivers. Did you deliberately cater for this case, and have you runtime tested it?
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