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Subject[PATCH] I2C-PIIX4: Use common error handling code in piix4_probe()
Date
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Wed, 25 Oct 2017 13:30:18 +0200

Add a jump target so that a bit of exception handling can be better reused
at the end of this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/i2c/busses/i2c-piix4.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 0ecdb47a23ab..22cc56e9f304 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -780,20 +780,16 @@ static int piix4_probe(struct pci_dev *dev, const struct pci_device_id *id)

/* base address location etc changed in SB800 */
retval = piix4_setup_sb800(dev, id, 0);
- if (retval < 0) {
- release_region(SB800_PIIX4_SMB_IDX, 2);
- return retval;
- }
+ if (retval < 0)
+ goto release_region;

/*
* Try to register multiplexed main SMBus adapter,
* give up if we can't
*/
retval = piix4_add_adapters_sb800(dev, retval);
- if (retval < 0) {
- release_region(SB800_PIIX4_SMB_IDX, 2);
- return retval;
- }
+ if (retval < 0)
+ goto release_region;
} else {
retval = piix4_setup(dev, id);
if (retval < 0)
@@ -833,6 +829,10 @@ static int piix4_probe(struct pci_dev *dev, const struct pci_device_id *id)
}

return 0;
+
+release_region:
+ release_region(SB800_PIIX4_SMB_IDX, 2);
+ return retval;
}

static void piix4_adap_remove(struct i2c_adapter *adap)
--
2.14.3
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