On 6/26/20 3:27 PM, Maxime Coquelin wrote:
> This patches fixes a null pointer derefencing that happens
> when the device string passed to the iterator is NULL. This
> situation can happen when iterating on a class type.
> For example:
>
> RTE_DEV_FOREACH(dev, "class=eth", &dev_iter) {
> ...
> }
>
> Fixes: e67a61614d0b ("bus/fslmc: support device iteration")
> Cc: sta...@dpdk.org
> Cc: shreyansh.j...@nxp.com
>
> Signed-off-by: Maxime Coquelin <maxime.coque...@redhat.com>
> ---
> drivers/bus/fslmc/fslmc_bus.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/bus/fslmc/fslmc_bus.c b/drivers/bus/fslmc/fslmc_bus.c
> index afbd82e8db..ac46eb4fe8 100644
> --- a/drivers/bus/fslmc/fslmc_bus.c
> +++ b/drivers/bus/fslmc/fslmc_bus.c
> @@ -603,6 +603,11 @@ fslmc_bus_dev_iterate(const void *start, const char *str,
> struct rte_dpaa2_device *dev;
> char *dup, *dev_name = NULL;
>
> + if (str == NULL) {
> + DPAA2_BUS_DEBUG("No device string");
> + return NULL;
> + }
> +
> /* Expectation is that device would be name=device_name */
> if (strncmp(str, "name=", 5) != 0) {
> DPAA2_BUS_DEBUG("Invalid device string (%s)\n", str);
>
Acked-by: Adrián Moreno <amore...@redhat.com>
--
Adrián Moreno
