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Message-Id: <20140220235020.646061257@linuxfoundation.org>
Date: Thu, 20 Feb 2014 15:52:22 -0800
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Hartmut Knaack <knaack.h@....de>,
Lars-Peter Clausen <lars@...afoo.de>,
Jonathan Cameron <jic23@...nel.org>
Subject: [PATCH 3.12 39/82] staging:iio:ad799x fix error_free_irq which was freeing an irq that may not have been requested
3.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Hartmut Knaack <knaack.h@....de>
commit 38408d056188be29a6c4e17f3703c796551bb330 upstream.
Only free an IRQ in error_free_irq, if it has been requested previously.
Signed-off-by: Hartmut Knaack <knaack.h@....de>
Acked-by: Lars-Peter Clausen <lars@...afoo.de>
Signed-off-by: Jonathan Cameron <jic23@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/staging/iio/adc/ad799x_core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/staging/iio/adc/ad799x_core.c
+++ b/drivers/staging/iio/adc/ad799x_core.c
@@ -644,7 +644,8 @@ static int ad799x_probe(struct i2c_clien
return 0;
error_free_irq:
- free_irq(client->irq, indio_dev);
+ if (client->irq > 0)
+ free_irq(client->irq, indio_dev);
error_cleanup_ring:
ad799x_ring_cleanup(indio_dev);
error_disable_reg:
--
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