Sometimes, a error occurs just after the Command has been reported to be successful (CC=1) but before data transfer completes (TC=1). Setting end_cmd=1 here leads to a NULL pointer dereference of host->cmd as the command complete has previously been handled. Set end_cmd only when command complete has not been handled before, else a NULL pointer dereference occurs. CC: stable@xxxxxxxxxxxxxxx Signed-off-by: Venkatraman S <svenkatr@xxxxxx> --- drivers/mmc/host/omap_hsmmc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 5434fd8..06d2e03 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -996,7 +996,8 @@ static void omap_hsmmc_do_irq(struct omap_hsmmc_host *host, int status) else if (status & (CMD_CRC | DATA_CRC)) hsmmc_command_incomplete(host, -EILSEQ); - end_cmd = 1; + if (host->cmd) + end_cmd = 1; if (host->data || host->response_busy) { end_trans = 1; host->response_busy = 0; -- 1.8.0 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html