From: Tong Zhang ztong0001@gmail.com
commit 281e468446994a7672733af2bf941f4110d4a895 upstream.
This patch fixes a trivial mistake that I made in the previous attempt in fixing the null bridge issue. The branch condition is inverted and we should call alcor_pci_find_cap_offset() only if bridge is not null.
Reported-by: Colin Ian King colin.king@canonical.com Fixes: 3ce3e45cc333 ("misc: alcor_pci: fix null-ptr-deref when there is no PCI bridge") Signed-off-by: Tong Zhang ztong0001@gmail.com Link: https://lore.kernel.org/r/20210522043725.602179-1-ztong0001@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/misc/cardreader/alcor_pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/misc/cardreader/alcor_pci.c +++ b/drivers/misc/cardreader/alcor_pci.c @@ -138,7 +138,7 @@ static void alcor_pci_init_check_aspm(st * priv->parent_pdev will be NULL. In this case we don't check its * capability and disable ASPM completely. */ - if (!priv->parent_pdev) + if (priv->parent_pdev) priv->parent_cap_off = alcor_pci_find_cap_offset(priv, priv->parent_pdev);