Even when SF devices are supported, the SF device table allocation
can still fail.
In such case mlx5_sf_dev_supported still reports true, but SF device
table is invalid. This can result in NULL table access.
Hence, fix it by adding NULL table check.
Fixes:
1958fc2f0712 ("net/mlx5: SF, Add auxiliary device driver")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
{
struct mlx5_sf_dev_table *table = dev->priv.sf_dev_table;
- if (!mlx5_sf_dev_supported(dev))
- return false;
-
- return !xa_empty(&table->devices);
+ return table && !xa_empty(&table->devices);
}
static ssize_t sfnum_show(struct device *dev, struct device_attribute *attr, char *buf)