linux-kernel - [PATCH] staging/comedi: fix sparse warning: shift too big

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Date:	Fri,  2 May 2014 18:57:04 +0400
From:	Brilliantov Kirill Vladimirovich <brilliantov@...ox.ru>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Ian Abbott <abbotti@....co.uk>,
	H Hartley Sweeten <hsweeten@...ionengravers.com>,
	linux-kernel@...r.kernel.org,
	Brilliantov Kirill Vladimirovich <brilliantov@...ox.ru>
Subject: [PATCH] staging/comedi: fix sparse warning: shift too big

Signed-off-by: Brilliantov Kirill Vladimirovich <brilliantov@...ox.ru>
---
 drivers/staging/comedi/drivers/ni_stc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/ni_stc.h b/drivers/staging/comedi/drivers/ni_stc.h
index f0630b78..197b568 100644
--- a/drivers/staging/comedi/drivers/ni_stc.h
+++ b/drivers/staging/comedi/drivers/ni_stc.h
@@ -717,7 +717,7 @@ enum AI_AO_Select_Bits {
 static inline unsigned ni_stc_dma_channel_select_bitfield(unsigned channel)
 {
 	if (channel < 4)
-		return 1 << channel;
+		return 1 << (channel & 0x3);
 	if (channel == 4)
 		return 0x3;
 	if (channel == 5)
-- 
1.9.1

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