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 <matth...@stdin.nl>
---
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 647dd95..62f9076 100644
--- a/drivers/media/rc/ene_ir.c
+++ b/drivers/media/rc/ene_ir.c
@@ -1000,7 +1000,7 @@ 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;
@@ -1011,10 +1011,10 @@ 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);
@@ -1030,7 +1030,7 @@ 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;
@@ -1075,30 +1075,27 @@ 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;
--
1.7.10
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