The Coverity checker noted that these "if (err)"'s couldn't ever be
true.

It seems the intention was to check the return values of the
bcm43xx_pci_write_config32()'s?
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NMichael Buesch <mb@bu3sch.de>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>