From: Ulf Hansson ulf.hansson@linaro.org
commit f04086c225da11ad16d7f9a2fbca6483ab16dded upstream.
During some scenarios mmc_sdio_init_card() runs a retry path for the UHS-I specific initialization, which leads to removal of the previously allocated card. A new card is then re-allocated while retrying.
However, in one of the corresponding error paths we may end up to remove an already removed card, which likely leads to a NULL pointer exception. So, let's fix this.
Fixes: 5fc3d80ef496 ("mmc: sdio: don't use rocr to check if the card could support UHS mode") Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Link: https://lore.kernel.org/r/20200430091640.455-2-ulf.hansson@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/mmc/core/sdio.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -718,9 +718,8 @@ try_again: /* Retry init sequence, but without R4_18V_PRESENT. */ retries = 0; goto try_again; - } else { - goto remove; } + return err; }
/*