Description: nfc: nci: fix possible NULL pointer dereference in send_acknowledge()
References:
 https://lore.kernel.org/netdev/20231013184129.18738-1-krzysztof.kozlowski%40linaro.org/T/#r38bdbaf8ae15305b77f6c5bc8e15d38f405623c7
Notes:
Bugs:
upstream: released (6.6-rc7) [7937609cd387246aed994e81aa4fa951358fba41]
6.1-upstream-stable: released (6.1.60) [d7dbdbe3800a908eecd4975c31be47dd45e2104a]
5.10-upstream-stable: released (5.10.199) [c95fa5b20fe03609e0894656fa43c18045b5097e]
4.19-upstream-stable: released (4.19.297) [5622592f8f74ae3e594379af02e64ea84772d0dd]
sid: released (6.5.10-1)
6.1-bookworm-security: released (6.1.64-1)
5.10-bullseye-security: released (5.10.205-1)
4.19-buster-security: released (4.19.304-1)