wireless, libertas: remove redundant NULL tests before calling release_firmware()

release_firmware() tests for, and deals gracefully with, NULL
pointers. Remove redundant explicit tests before calling the function.
Signed-off-by: NJesper Juhl <jj@chaosbits.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/libertas/if_cs.c

@@ -951,9 +951,7 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
 out1:
 	pcmcia_disable_device(p_dev);
 out:
-	if (helper)
 	release_firmware(helper);
-	if (mainfw)
 	release_firmware(mainfw);
 
 	lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);

drivers/net/wireless/libertas/if_sdio.c

@@ -751,9 +751,7 @@ static int if_sdio_prog_firmware(struct if_sdio_card *card)
 	ret = 0;
 
 out:
-	if (helper)
 	release_firmware(helper);
-	if (mainfw)
 	release_firmware(mainfw);
 
 	lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret);

drivers/net/wireless/libertas/if_spi.c

@@ -1095,9 +1095,7 @@ static int if_spi_init_card(struct if_spi_card *card)
 		goto out;
 
 out:
-	if (helper)
 	release_firmware(helper);
-	if (mainfw)
 	release_firmware(mainfw);
 
 	lbs_deb_leave_args(LBS_DEB_SPI, "err %d\n", err);

drivers/net/wireless/libertas/main.c

@@ -1269,14 +1269,10 @@ int lbs_get_firmware(struct device *dev, const char *user_helper,
 
   fail:
 	/* Failed */
-	if (*helper) {
 	release_firmware(*helper);
 	*helper = NULL;
-	}
-	if (*mainfw) {
 	release_firmware(*mainfw);
 	*mainfw = NULL;
-	}
 
 	return -ENOENT;
 }