[PATCH] bcm43xx: Add error checking in bcm43xx_sprom_write()

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: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/bcm43xx/bcm43xx_main.c

@@ -746,7 +746,7 @@ int bcm43xx_sprom_write(struct bcm43xx_private *bcm, const u16 *sprom)
 	if (err)
 		goto err_ctlreg;
 	spromctl |= 0x10; /* SPROM WRITE enable. */
-	bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_SPROMCTL, spromctl);
+	err = bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_SPROMCTL, spromctl);
 	if (err)
 		goto err_ctlreg;
 	/* We must burn lots of CPU cycles here, but that does not
@@ -768,7 +768,7 @@ int bcm43xx_sprom_write(struct bcm43xx_private *bcm, const u16 *sprom)
 		mdelay(20);
 	}
 	spromctl &= ~0x10; /* SPROM WRITE enable. */
-	bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_SPROMCTL, spromctl);
+	err = bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_SPROMCTL, spromctl);
 	if (err)
 		goto err_ctlreg;
 	mdelay(500);