3.12-stable review patch. If anyone has any objections, please let me know.
------------------ From: Rodolfo Giometti <[email protected]> commit fbd986cd420d1deeabf1039ec4e74075a5639db5 upstream. In some cases, a NULL pointer dereference happens because data is NULL when STATE_END_REQUEST case is reached in atmci_tasklet_func. Signed-off-by: Rodolfo Giometti <[email protected]> Acked-by: Ludovic Desroches <[email protected]> Acked-by: Nicolas Ferre <[email protected]> Signed-off-by: Chris Ball <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/mmc/host/atmel-mci.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -1810,12 +1810,14 @@ static void atmci_tasklet_func(unsigned if (unlikely(status)) { host->stop_transfer(host); host->data = NULL; - if (status & ATMCI_DTOE) { - data->error = -ETIMEDOUT; - } else if (status & ATMCI_DCRCE) { - data->error = -EILSEQ; - } else { - data->error = -EIO; + if (data) { + if (status & ATMCI_DTOE) { + data->error = -ETIMEDOUT; + } else if (status & ATMCI_DCRCE) { + data->error = -EILSEQ; + } else { + data->error = -EIO; + } } } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
