mmc_add_host() may return error, but it was ignored in some drivers, if we ignore it, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path. So fix this by checking the return value and calling mmc_free_host() in error path. Yang Yingliang (9): mmc: alcor: fix return value check of mmc_add_host() mmc: moxart: fix return value check of mmc_add_host() mmc: mxcmmc: fix return value check of mmc_add_host() mmc: pxamci: fix return value check of mmc_add_host() mmc: rtsx_pci: fix return value check of mmc_add_host() mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host() mmc: toshsd: fix return value check of mmc_add_host() mmc: vub300: fix return value check of mmc_add_host() mmc: wmt-sdmmc: fix return value check of mmc_add_host() drivers/mmc/host/alcor.c | 5 ++++- drivers/mmc/host/moxart-mmc.c | 4 +++- drivers/mmc/host/mxcmmc.c | 4 +++- drivers/mmc/host/pxamci.c | 7 ++++++- drivers/mmc/host/rtsx_pci_sdmmc.c | 9 ++++++++- drivers/mmc/host/rtsx_usb_sdmmc.c | 11 ++++++++++- drivers/mmc/host/toshsd.c | 6 +++++- drivers/mmc/host/vub300.c | 11 ++++++++--- drivers/mmc/host/wmt-sdmmc.c | 6 +++++- 9 files changed, 52 insertions(+), 11 deletions(-) -- 2.25.1
