4.9-stable review patch. If anyone has any objections, please let me know.
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From: Bjorn Andersson bjorn.andersson@linaro.org
[ Upstream commit 90c29ed7627b6b4aeb603ee197650173c8434512 ]
hdr.len includes both the size of the header and the fragment, so using this when stepping through the firmware causes us to skip 16 bytes every chunk of 3072 bytes; causing only the first fragment to actually be valid data.
Instead use fragment size steps through the firmware blob.
Fixes: ea7a1f275cf0 ("soc: qcom: Introduce WCNSS_CTRL SMD client") Reported-by: Will Newton will.newton@gmail.com Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org Signed-off-by: Andy Gross andy.gross@linaro.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/soc/qcom/wcnss_ctrl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/soc/qcom/wcnss_ctrl.c +++ b/drivers/soc/qcom/wcnss_ctrl.c @@ -247,7 +247,7 @@ static int wcnss_download_nv(struct wcns /* Increment for next fragment */ req->seq++;
- data += req->hdr.len; + data += NV_FRAGMENT_SIZE; left -= NV_FRAGMENT_SIZE; } while (left > 0);