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misc: microchip: pci1xxxx: Fix a memory leak in the error handling of gp_aux_bus_probe()

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'aux_bus' is freed in the remove function but not in the error handling
path of the probe.

Use devm_kzalloc() to simplify the remove function and fix the leak in the
probe.

Fixes: 393fc2f594 ("misc: microchip: pci1xxxx: load auxiliary bus driver for the PIO function in the multi-function endpoint of pci1xxxx device.")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/17e19926669a1654e5f2495bf3b289581183d02e.1663482259.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christophe JAILLET 2022-09-18 08:27:33 +02:00 committed by Greg Kroah-Hartman
parent c8b4747569
commit 62e5d00684
1 changed files with 1 additions and 2 deletions
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3
drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gp.c
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@ -38,7 +38,7 @@ static int gp_aux_bus_probe(struct pci_dev *pdev, const struct pci_device_id *id
if (retval)
return retval;
aux_bus = kzalloc(sizeof(*aux_bus), GFP_KERNEL);
aux_bus = devm_kzalloc(&pdev->dev, sizeof(*aux_bus), GFP_KERNEL);
if (!aux_bus)
return -ENOMEM;
@ -138,7 +138,6 @@ static void gp_aux_bus_remove(struct pci_dev *pdev)
auxiliary_device_uninit(&aux_bus->aux_device_wrapper[0]->aux_dev);
auxiliary_device_delete(&aux_bus->aux_device_wrapper[1]->aux_dev);
auxiliary_device_uninit(&aux_bus->aux_device_wrapper[1]->aux_dev);
kfree(aux_bus);
}
static const struct pci_device_id pci1xxxx_tbl[] = {