brcm80211: fmac: chip attach code flow clean up

Merged brcmf_sdbrcm_chip_attach into brcmf_sdio_chip_attach
for better readability.
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c

@@ -3867,31 +3867,6 @@ static void brcmf_sdbrcm_sdiod_drive_strength_init(struct brcmf_bus *bus,
 	}
 }
 
-static int
-brcmf_sdbrcm_chip_attach(struct brcmf_bus *bus, u32 regs)
-{
-	struct chip_info *ci;
-	int err;
-
-	brcmf_dbg(TRACE, "Enter\n");
-
-	/* alloc chip_info_t */
-	ci = kzalloc(sizeof(struct chip_info), GFP_ATOMIC);
-	if (NULL == ci)
-		return -ENOMEM;
-
-	err = brcmf_sdio_chip_attach(bus->sdiodev, ci, regs);
-	if (err)
-		goto fail;
-
-	bus->ci = ci;
-	return 0;
-fail:
-	bus->ci = NULL;
-	kfree(ci);
-	return err;
-}
-
 static bool
 brcmf_sdbrcm_probe_attach(struct brcmf_bus *bus, u32 regsva)
 {
@@ -3913,7 +3888,7 @@ brcmf_sdbrcm_probe_attach(struct brcmf_bus *bus, u32 regsva)
 #endif				/* BCMDBG */
 
 	/*
-	 * Force PLL off until brcmf_sdbrcm_chip_attach()
+	 * Force PLL off until brcmf_sdio_chip_attach()
 	 * programs PLL control regs
 	 */
 
@@ -3931,8 +3906,8 @@ brcmf_sdbrcm_probe_attach(struct brcmf_bus *bus, u32 regsva)
 		goto fail;
 	}
 
-	if (brcmf_sdbrcm_chip_attach(bus, regsva)) {
-		brcmf_dbg(ERROR, "brcmf_sdbrcm_chip_attach failed!\n");
+	if (brcmf_sdio_chip_attach(bus->sdiodev, &bus->ci, regsva)) {
+		brcmf_dbg(ERROR, "brcmf_sdio_chip_attach failed!\n");
 		goto fail;
 	}
 

drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c

@@ -252,17 +252,25 @@ brcmf_sdio_chip_buscoresetup(struct brcmf_sdio_dev *sdiodev,
 }
 
 int brcmf_sdio_chip_attach(struct brcmf_sdio_dev *sdiodev,
-			   struct chip_info *ci, u32 regs)
+			   struct chip_info **ci_ptr, u32 regs)
 {
-	int ret = 0;
+	int ret;
+	struct chip_info *ci;
+
+	brcmf_dbg(TRACE, "Enter\n");
+
+	/* alloc chip_info_t */
+	ci = kzalloc(sizeof(struct chip_info), GFP_ATOMIC);
+	if (!ci)
+		return -ENOMEM;
 
 	ret = brcmf_sdio_chip_buscoreprep(sdiodev);
 	if (ret != 0)
-		return ret;
+		goto err;
 
 	ret = brcmf_sdio_chip_recognition(sdiodev, ci, regs);
 	if (ret != 0)
-		return ret;
+		goto err;
 
 	brcmf_sdio_chip_buscoresetup(sdiodev, ci);
 
@@ -271,5 +279,10 @@ int brcmf_sdio_chip_attach(struct brcmf_sdio_dev *sdiodev,
 	brcmf_sdcard_reg_write(sdiodev,
 		CORE_CC_REG(ci->cccorebase, gpiopulldown), 4, 0);
 
+	*ci_ptr = ci;
+	return 0;
+
+err:
+	kfree(ci);
 	return ret;
 }

drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h

@@ -137,7 +137,6 @@ struct sbconfig {
 extern void brcmf_sdio_chip_coredisable(struct brcmf_sdio_dev *sdiodev,
 					u32 corebase);
 extern int brcmf_sdio_chip_attach(struct brcmf_sdio_dev *sdiodev,
-				  struct chip_info *ci, u32 regs);
-
+				  struct chip_info **ci_ptr, u32 regs);
 
 #endif		/* _BRCMFMAC_SDIO_CHIP_H_ */