From 56411c0f1eec7495bcf1fd6b83a51bb57be608d4 Mon Sep 17 00:00:00 2001 From: Matthijs Kooijman Date: Mon, 15 Oct 2012 07:13:44 -0300 Subject: [PATCH] [media] ene-ir: Fix cleanup on probe failure This makes the cleanup on probe failure more consistent with other drivers. This is similar to what commit f27b853ea24a9b70585f9251384d97929e6551c3 ("[media] rc: Fix invalid free_region and/or free_irq on probe failure") did for some other drivers. In addition to making the cleanup more consistent, this also fixes a case where (on a ene_hw_detect failure) free_region would be called on a region that was not requested yet. This last problem was probably introduced by the moving of code in commit b31b021988fed9e3741a46918f14ba9b063811db ("[media] ene_ir: Fix driver initialisation") and commit 9ef449c6b31bb6a8e6dedc24de475a3b8c79be20 ("[media] rc: Postpone ISR registration"). Signed-off-by: Matthijs Kooijman Cc: Maxim Levitsky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/ene_ir.c | 29 +++++++++++++---------------- 1 file changed, 13 insertions(+), 16 deletions(-) diff --git a/drivers/media/rc/ene_ir.c b/drivers/media/rc/ene_ir.c index dd3c510..22231dd 100644 --- a/drivers/media/rc/ene_ir.c +++ b/drivers/media/rc/ene_ir.c @@ -1003,7 +1003,7 @@ static int ene_probe(struct pnp_dev *pnp_dev, const struct pnp_device_id *id) dev = kzalloc(sizeof(struct ene_device), GFP_KERNEL); rdev = rc_allocate_device(); if (!dev || !rdev) - goto error1; + goto failure; /* validate resources */ error = -ENODEV; @@ -1014,10 +1014,10 @@ static int ene_probe(struct pnp_dev *pnp_dev, const struct pnp_device_id *id) if (!pnp_port_valid(pnp_dev, 0) || pnp_port_len(pnp_dev, 0) < ENE_IO_SIZE) - goto error; + goto failure; if (!pnp_irq_valid(pnp_dev, 0)) - goto error; + goto failure; spin_lock_init(&dev->hw_lock); @@ -1033,7 +1033,7 @@ static int ene_probe(struct pnp_dev *pnp_dev, const struct pnp_device_id *id) /* detect hardware version and features */ error = ene_hw_detect(dev); if (error) - goto error; + goto failure; if (!dev->hw_learning_and_tx_capable && txsim) { dev->hw_learning_and_tx_capable = true; @@ -1078,30 +1078,27 @@ static int ene_probe(struct pnp_dev *pnp_dev, const struct pnp_device_id *id) /* claim the resources */ error = -EBUSY; if (!request_region(dev->hw_io, ENE_IO_SIZE, ENE_DRIVER_NAME)) { - dev->hw_io = -1; - dev->irq = -1; - goto error; + goto failure; } dev->irq = pnp_irq(pnp_dev, 0); if (request_irq(dev->irq, ene_isr, IRQF_SHARED, ENE_DRIVER_NAME, (void *)dev)) { - dev->irq = -1; - goto error; + goto failure2; } error = rc_register_device(rdev); if (error < 0) - goto error; + goto failure3; pr_notice("driver has been successfully loaded\n"); return 0; -error: - if (dev && dev->irq >= 0) - free_irq(dev->irq, dev); - if (dev && dev->hw_io >= 0) - release_region(dev->hw_io, ENE_IO_SIZE); -error1: + +failure3: + free_irq(dev->irq, dev); +failure2: + release_region(dev->hw_io, ENE_IO_SIZE); +failure: rc_free_device(rdev); kfree(dev); return error; -- 2.7.4