tdc: update the size of the buffer and the semaphore with *_interruptible

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

tdc: update the size of the buffer and the semaphore with *_interruptible
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
44638da3 · Samuel Iglesias Gonsálvez · 053bdff1 · 44638da3 · 44638da3
Commit 44638da3 authored Sep 04, 2012 by Samuel Iglesias Gonsálvez
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Showing with 3 additions and 2 deletions

tdc_regs.h hw/tdc_regs.h +1 -1

tdc-zio.c tdc-zio.c +2 -1

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--- a/hw/tdc_regs.h
+++ b/hw/tdc_regs.h
@@ -99,7 +99,7 @@
 /* Constants */
 #define TDC_CHAN_NUMBER 5

-#define TDC_EVENT_BUFFER_SIZE 1024
+#define TDC_EVENT_BUFFER_SIZE 256
 #define TDC_EVENT_CHANNEL_MASK 0x3
 #define TDC_EVENT_DACAPO_FLAG BIT(0)


--- a/tdc-zio.c
+++ b/tdc-zio.c
@@ -224,7 +224,8 @@ static int tdc_zio_raw_io(struct zio_cset *cset)
 	chan = cset->index - 1;

 	/* Wait for data */
-	down(&tdc->event[chan].lock);
+	if(down_interruptible(&tdc->event[chan].lock))
+		return -ERESTARTSYS;

 	/* Check if we have read this data before */
 	/* XXX: change it if we have more data or use a mutex */