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wil6210: ignore reset errors for FW during probe

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There are special kinds of FW such as WMI only which
are used for testing, diagnostics and other specific
scenario.
Such FW is loaded during driver probe and the driver
disallows enabling any network interface, to avoid
operational issues.
In many cases it is used to debug early versions
of FW with new features, which sometimes fail
on startup.
Currently when such FW fails to load (for example,
because of init failure), the driver probe would fail
and shutdown the device making it difficult to debug
the early failure.
To fix this, ignore load failures in WMI only FW and
allow driver probe to succeed, making it possible to
continue and debug the FW load failure.

Change-Id: I35e1cffaf7d033c81603bb2c3dc6d512fc5e3929
Signed-off-by: Lior David <liord@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Git-commit: 50e107ff221347494799bf038e0444f195e8ad2a
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
Signed-off-by: Maya Erez <merez@codeaurora.org>
This commit is contained in:
Lior David 2019-09-10 16:46:43 +03:00 • committed by Maya Erez
parent 2eaf76bd86
commit 1666d0d9b8
1 changed files with 1 additions and 3 deletions

4
drivers/net/wireless/ath/wil6210/pcie_bus.c
View file

@ -536,7 +536,7 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
mutex_unlock(&wil->mutex);
if (rc) {
wil_err(wil, "failed to load WMI only FW\n");
goto if_remove;
/* ignore the error to allow debugging */
}
}
@ -557,8 +557,6 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return 0;
if_remove:
wil_if_remove(wil);
bus_disable:
wil_if_pcie_disable(wil);
err_iounmap: