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Message-Id: <1440713521-5906-20-git-send-email-kamal@canonical.com>
Date: Thu, 27 Aug 2015 15:10:10 -0700
From: Kamal Mostafa <kamal@...onical.com>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
kernel-team@...ts.ubuntu.com
Cc: Haibo Chen <haibo.chen@...escale.com>,
Fugang Duan <B38611@...escale.com>,
Jonathan Cameron <jic23@...nel.org>,
Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.19.y-ckt 019/130] iio: adc: vf610: fix the adc register read fail issue
3.19.8-ckt6 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Fugang Duan <b38611@...escale.com>
commit bf604a4c44a91cc2ceb60d4643a091b6b32cc999 upstream.
Read the register only when the adc register address is 4 byte aligned.
(rather than the other way around).
Signed-off-by: Haibo Chen <haibo.chen@...escale.com>
Signed-off-by: Fugang Duan <B38611@...escale.com>
Signed-off-by: Jonathan Cameron <jic23@...nel.org>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
drivers/iio/adc/vf610_adc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c
index e63b8e7..60617ed 100644
--- a/drivers/iio/adc/vf610_adc.c
+++ b/drivers/iio/adc/vf610_adc.c
@@ -579,7 +579,7 @@ static int vf610_adc_reg_access(struct iio_dev *indio_dev,
struct vf610_adc *info = iio_priv(indio_dev);
if ((readval == NULL) ||
- (!(reg % 4) || (reg > VF610_REG_ADC_PCTL)))
+ ((reg % 4) || (reg > VF610_REG_ADC_PCTL)))
return -EINVAL;
*readval = readl(info->regs + reg);
--
1.9.1
--
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