[PATCH v2] ath11k: fix rmmod failure if qmi sequence fails

[Kalle Valo]

Anilkumar Kolli <akolli at codeaurora.org> writes:

> QMI sequence fails if caldata file is not available.
> It is observed that 'rmmod ath11k' fails if qmi message fails.
> With this patch rmmod/insmod is working.
>
> Logs:
> Direct firmware load for IPQ8074/caldata.bin failed with error -2
> Falling back to user helper
> qmi failed to load CAL: IPQ8074/caldata.bin
> qmi failed to load board data file:-11
>
> Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-00009-QCAHKSWPL_SILICONZ-1
>
> Signed-off-by: Anilkumar Kolli <akolli at codeaurora.org>

With this patch reloading ath11k (which has worked fine before) crashes
the kernel on QCA6390 hw2.0:

Nov 25 16:00:52 nuc1 [  393.188277] BUG: unable to handle page fault for address: ffffffffc05b8e38
Nov 25 16:00:52 nuc1 [  393.188300] #PF: supervisor read access in kernel mode
Nov 25 16:00:52 nuc1 [  393.188312] #PF: error_code(0x0000) - not-present page

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