b43: Fix oops on unload when firmware not found
b43: Fix oops on unload when firmware not found

When b43 fails to find firmware when loaded, a subsequent unload will
oops due to calling ieee80211_unregister_hw() when the corresponding
register call was never made.

Commit 2d838bb608e2d1f6cb4280e76748cb812dc822e7 fixed the same problem
for b43legacy.

Signed-off-by: Larry Finger <ed0f1d78b8c21b2970494a178da4bdfa8beba2a7@lwfinger.net>
Tested-by: Markus Kanet <1bbced76adbe7f21bb3dfa7507fa59c1e4b7a46c@gmx.eu>
Cc: Stable <4fbacc2fa0ffdbb11bf1ad6925b886ebd08dd15f@vger.kernel.org> [V3.3.0+ (the patch will need to be refactored)]
Cc: Markus Kanet <1bbced76adbe7f21bb3dfa7507fa59c1e4b7a46c@gmx.eu>
Signed-off-by: John W. Linville <2a53bac7a5d324865ef46ec4c38b2c0fba1456b4@tuxdriver.com>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas