diff options
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/pinctrl-single.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c index 174f4c50cd77..de6459628b4f 100644 --- a/drivers/pinctrl/pinctrl-single.c +++ b/drivers/pinctrl/pinctrl-single.c @@ -1318,6 +1318,14 @@ static int pcs_parse_bits_in_pinctrl_entry(struct pcs_device *pcs, mask_pos = ((pcs->fmask) << (bit_pos - 1)); val_pos = val & mask_pos; submask = mask & mask_pos; + + if ((mask & mask_pos) == 0) { + dev_err(pcs->dev, + "Invalid mask for %s at 0x%x\n", + np->name, offset); + break; + } + mask &= ~mask_pos; if (submask != mask_pos) { |