Messages in this thread Patch in this message | | | From | Mika Westerberg <> | Subject | [PATCH v3 10/27] thunderbolt: Fail switch adding operation if reading DROM fails | Date | Fri, 2 Jun 2017 17:05:07 +0300 |
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All non-root switches are expected to have DROM so if the operation fails, it might be due the user unlugging the device. There is no point continuing adding the switch further in that case. Just bail out.
For root switches (hosts) the DROM is either retrieved from a EFI variable, NVM or hard-coded.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Yehezkel Bernat <yehezkel.bernat@intel.com> Reviewed-by: Michael Jamet <michael.jamet@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- drivers/thunderbolt/switch.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c index 5cd854dedeea..0ce8b600a23f 100644 --- a/drivers/thunderbolt/switch.c +++ b/drivers/thunderbolt/switch.c @@ -535,8 +535,11 @@ int tb_switch_add(struct tb_switch *sw) int i, ret; /* read drom */ - if (tb_drom_read(sw)) - tb_sw_warn(sw, "tb_eeprom_read_rom failed, continuing\n"); + ret = tb_drom_read(sw); + if (ret) { + tb_sw_warn(sw, "tb_eeprom_read_rom failed\n"); + return ret; + } tb_sw_info(sw, "uid: %#llx\n", sw->uid); tb_switch_set_uuid(sw); -- 2.11.0
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