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Subject[PATCH] [media] marvell-ccic: fix memory leak on failure path in cafe_smbus_setup()
Date
If i2c_add_adapter() fails, adap is not deallocated.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
---
drivers/media/platform/marvell-ccic/cafe-driver.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/marvell-ccic/cafe-driver.c b/drivers/media/platform/marvell-ccic/cafe-driver.c
index 562845361246..9d45505370cd 100644
--- a/drivers/media/platform/marvell-ccic/cafe-driver.c
+++ b/drivers/media/platform/marvell-ccic/cafe-driver.c
@@ -339,17 +339,21 @@ static int cafe_smbus_setup(struct cafe_camera *cam)
adap = kzalloc(sizeof(*adap), GFP_KERNEL);
if (adap == NULL)
return -ENOMEM;
- cam->mcam.i2c_adapter = adap;
- cafe_smbus_enable_irq(cam);
adap->owner = THIS_MODULE;
adap->algo = &cafe_smbus_algo;
strcpy(adap->name, "cafe_ccic");
adap->dev.parent = &cam->pdev->dev;
i2c_set_adapdata(adap, cam);
ret = i2c_add_adapter(adap);
- if (ret)
+ if (ret) {
printk(KERN_ERR "Unable to register cafe i2c adapter\n");
- return ret;
+ kfree(adap);
+ return ret;
+ }
+
+ cam->mcam.i2c_adapter = adap;
+ cafe_smbus_enable_irq(cam);
+ return 0;
}

static void cafe_smbus_shutdown(struct cafe_camera *cam)
--
1.9.1


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