slimbus: fix a potential NULL pointer dereference in of_qcom_slim_ngd_register
[ Upstream commit 06d5d6b7 ] In case platform_device_alloc fails, the fix returns an error code to avoid the NULL pointer dereference. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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