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intel_th: Fix a resource leak in an error handling path

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[ Upstream commit 086c28ab7c5699256aced0049aae9c42f1410313 ]

If an error occurs after calling 'pci_alloc_irq_vectors()',
'pci_free_irq_vectors()' must be called as already done in the remove
function.

Fixes: 7b7036d47c ("intel_th: pci: Use MSI interrupt signalling")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Link: https://lore.kernel.org/r/20220705082637.59979-2-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christophe JAILLET 2022-07-05 11:26:32 +03:00 committed by Greg Kroah-Hartman
parent 3771ee6c46
commit 859342220a
1 changed files with 8 additions and 2 deletions
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10
drivers/hwtracing/intel_th/pci.c
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@ -100,8 +100,10 @@ static int intel_th_pci_probe(struct pci_dev *pdev,
}
th = intel_th_alloc(&pdev->dev, drvdata, resource, r);
if (IS_ERR(th))
return PTR_ERR(th);
if (IS_ERR(th)) {
err = PTR_ERR(th);
goto err_free_irq;
}
th->activate = intel_th_pci_activate;
th->deactivate = intel_th_pci_deactivate;
@ -109,6 +111,10 @@ static int intel_th_pci_probe(struct pci_dev *pdev,
pci_set_master(pdev);
return 0;
err_free_irq:
pci_free_irq_vectors(pdev);
return err;
}
static void intel_th_pci_remove(struct pci_dev *pdev)