Mohammed Shafi Shajakhan <mohammed@xxxxxxxxxxxxxxxx> writes: > From: Mohammed Shafi Shajakhan <mohammed@xxxxxxxxxxxxxxxx> > > Credit distribution stats is currently implemented > only for SDIO. This fixes a crash in debugfs for > USB interface. > > BUG: unable to handle kernel NULL pointer dereference at (null) > IP: [<f91c2048>] read_file_credit_dist_stats+0x38/0x330 [ath6kl_core] > *pde = b62bd067 > Oops: 0000 [#1] SMP [...] > --- a/drivers/net/wireless/ath/ath6kl/debug.c > +++ b/drivers/net/wireless/ath/ath6kl/debug.c > @@ -658,6 +658,9 @@ static ssize_t read_file_credit_dist_stats(struct file *file, > unsigned int buf_len, len = 0; > ssize_t ret_cnt; > > + if (ar->hif_type != ATH6KL_HIF_TYPE_SDIO) > + return -EINVAL; Actually I think it would be better not to even create the debugfs when using sdio. -- Kalle Valo -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
