From: Ye Bin <yebin10@xxxxxxxxxx> commit f4307b4df1c28842bb1950ff0e1b97e17031b17f upstream. In __mmc_test_register_dbgfs_file(), we need to assign 'file', as it's being used when removing the debugfs files when the mmc_test module is removed. Fixes: a04c50aaa916 ("mmc: core: no need to check return value of debugfs_create functions") Signed-off-by: Ye Bin <yebin10@xxxxxxxxxx> Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx [Ulf: Re-wrote the commit msg] Link: https://lore.kernel.org/r/20221123095506.1965691-1-yebin@xxxxxxxxxxxxxxx Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/mmc/core/mmc_test.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/mmc/core/mmc_test.c +++ b/drivers/mmc/core/mmc_test.c @@ -3195,7 +3195,8 @@ static int __mmc_test_register_dbgfs_fil struct mmc_test_dbgfs_file *df; if (card->debugfs_root) - debugfs_create_file(name, mode, card->debugfs_root, card, fops); + file = debugfs_create_file(name, mode, card->debugfs_root, + card, fops); df = kmalloc(sizeof(*df), GFP_KERNEL); if (!df) {