Description: fm10k: Fix a potential NULL pointer dereference 
References:
Notes:
 bwh> Apparently introduced in 3.18 when fm10k driver was added.
Bugs:
upstream: released (5.1-rc4) [01ca667133d019edc9f0a1f70a272447c84ec41f]
4.19-upstream-stable: released (4.19.38) [9b9b0df4e7882638e53c55e8f556aa78915418b9]
4.9-upstream-stable: released (4.9.172) [0648cd7304cfba4fe4959f133e4bdf00f2909059]
3.16-upstream-stable: N/A "Vulnerable code not present"
sid: released (5.2.6-1)
4.19-buster-security: released (4.19.67-1)
4.9-stretch-security: released (4.9.184-1)
3.16-jessie-security: N/A "Vulnerable code not present"