PCI/sysfs: Fix double free in error path

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When pci_create_attr() fails, pci_remove_resource_files() is called which
will iterate over the res_attr[_wc] arrays and frees every non NULL entry.
To avoid a double free here set the array entry only after it's clear we
successfully initialized it.

Fixes: b562ec8f74 ("PCI: Don't leak memory if sysfs_create_bin_file() fails")
Link: https://lore.kernel.org/r/20221007070735.GX986@pengutronix.de/
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org

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Sascha Hauer 2022-11-08 17:05:59 -06:00 • committed by Bjorn Helgaas

parent 9abf2313ad

commit aa382ffa70

1 changed files with 9 additions and 4 deletions

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drivers/pci/pci-sysfs.c

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