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/openbmc/linux/drivers/ipack/carriers/ |
H A D | tpci200.c | 9272e5d0 Mon May 24 04:32:05 CDT 2021 Lv Yunlong <lyl2019@mail.ustc.edu.cn> ipack/carriers/tpci200: Fix a double free in tpci200_pci_probe
In the out_err_bus_register error branch of tpci200_pci_probe, tpci200->info->cfg_regs is freed by tpci200_uninstall()-> tpci200_unregister()->pci_iounmap(..,tpci200->info->cfg_regs) in the first time.
But later, iounmap() is called to free tpci200->info->cfg_regs again.
My patch sets tpci200->info->cfg_regs to NULL after tpci200_uninstall() to avoid the double free.
Fixes: cea2f7cdff2af ("Staging: ipack/bridges/tpci200: Use the TPCI200 in big endian mode") Cc: stable <stable@vger.kernel.org> Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn> Link: https://lore.kernel.org/r/20210524093205.8333-1-lyl2019@mail.ustc.edu.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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