diff options
| author | Gil Fine <gil.fine@intel.com> | 2022-05-09 23:49:03 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2022-05-12 09:22:11 +0300 |
| commit | 93bf344f66995ef816bd63c165fa9ac1ea4fcb3d (patch) | |
| tree | 9328508dcab24f59a83013a9613cba646ce88776 /drivers/thunderbolt/tunnel.c | |
| parent | 8e1de7042596abb7cb277ea751fc13a4c2b65aea (diff) | |
thunderbolt: Fix buffer allocation of devices with no DisplayPort adapters
For the case of a device without DisplayPort adapters we calculate
incorrectly the amount of buffers. Fix the calculation for this case.
Signed-off-by: Gil Fine <gil.fine@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt/tunnel.c')
| -rw-r--r-- | drivers/thunderbolt/tunnel.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/thunderbolt/tunnel.c b/drivers/thunderbolt/tunnel.c index 8ccd70920b6a..2c3cf7fc3357 100644 --- a/drivers/thunderbolt/tunnel.c +++ b/drivers/thunderbolt/tunnel.c @@ -102,8 +102,11 @@ static unsigned int tb_available_credits(const struct tb_port *port, * Maximum number of DP streams possible through the * lane adapter. */ - ndp = (credits - (usb3 + pcie + spare)) / - (sw->min_dp_aux_credits + sw->min_dp_main_credits); + if (sw->min_dp_aux_credits + sw->min_dp_main_credits) + ndp = (credits - (usb3 + pcie + spare)) / + (sw->min_dp_aux_credits + sw->min_dp_main_credits); + else + ndp = 0; } else { ndp = 0; } |