staging: brcm80211: Remove NULL check before kfree

This patch was generated by the following semantic patch:
// <smpl>
@@ expression E; @@
- if (E != NULL) { kfree(E); }
+ kfree(E);

@@ expression E; @@
- if (E != NULL) { kfree(E); E = NULL; }
+ kfree(E);
+ E = NULL;
// </smpl>

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/brcmfmac/dhd_cdc.c

@@ -415,8 +415,7 @@ int dhd_prot_attach(dhd_pub_t *dhd)
 	return 0;
 
 fail:
-	if (cdc != NULL)
-		kfree(cdc);
+	kfree(cdc);
 	return BCME_NOMEM;
 }
 

drivers/staging/brcm80211/brcmfmac/dhd_common.c

@@ -996,8 +996,7 @@ dhd_pktfilter_offload_enable(dhd_pub_t *dhd, char *arg, int enable,
 			   __func__, arg, rc));
 
 fail:
-	if (arg_org)
-		kfree(arg_org);
+	kfree(arg_org);
 }
 
 void dhd_pktfilter_offload_set(dhd_pub_t *dhd, char *arg)
@@ -1132,11 +1131,9 @@ void dhd_pktfilter_offload_set(dhd_pub_t *dhd, char *arg)
 			   __func__, arg));
 
 fail:
-	if (arg_org)
-		kfree(arg_org);
+	kfree(arg_org);
 
-	if (buf)
-		kfree(buf);
+	kfree(buf);
 }
 
 void dhd_arp_offload_set(dhd_pub_t *dhd, int arp_mode)

drivers/staging/brcm80211/brcmfmac/dhd_linux.c

@@ -1777,8 +1777,7 @@ done:
 			bcmerror = -EFAULT;
 	}
 
-	if (buf)
-		kfree(buf);
+	kfree(buf);
 
 	if (bcmerror > 0)
 		bcmerror = 0;

drivers/staging/brcm80211/brcmfmac/dhd_sdio.c

@@ -1930,10 +1930,8 @@ static int dhdsdio_checkdied(dhd_bus_t *bus, u8 *data, uint size)
 #endif				/* DHD_DEBUG */
 
 done:
-	if (mbuffer)
-		kfree(mbuffer);
-	if (str)
-		kfree(str);
+	kfree(mbuffer);
+	kfree(str);
 
 	return bcmerror;
 }
@@ -1962,8 +1960,7 @@ static int dhdsdio_mem_dump(dhd_bus_t *bus)
 		ret = dhdsdio_membytes(bus, false, start, databuf, read_size);
 		if (ret) {
 			DHD_ERROR(("%s: Error membytes %d\n", __func__, ret));
-			if (buf)
-				kfree(buf);
+			kfree(buf);
 			return -1;
 		}
 		printk(".");
@@ -2081,8 +2078,7 @@ int dhdsdio_downloadvars(dhd_bus_t *bus, void *arg, int len)
 	}
 
 	/* Free the old ones and replace with passed variables */
-	if (bus->vars)
-		kfree(bus->vars);
+	kfree(bus->vars);
 
 	bus->vars = kmalloc(len, GFP_ATOMIC);
 	bus->varsz = bus->vars ? len : 0;
@@ -5541,10 +5537,8 @@ static void dhdsdio_release_malloc(dhd_bus_t *bus)
 		bus->rxlen = 0;
 	}
 
-	if (bus->databuf) {
-		kfree(bus->databuf);
-		bus->databuf = NULL;
-	}
+	kfree(bus->databuf);
+	bus->databuf = NULL;
 }
 
 static void dhdsdio_release_dongle(dhd_bus_t *bus)
@@ -5732,8 +5726,7 @@ static int dhdsdio_download_code_file(struct dhd_bus *bus, char *fw_path)
 	}
 
 err:
-	if (memblock)
-		kfree(memblock);
+	kfree(memblock);
 
 	if (image)
 		dhd_os_close_image(image);
@@ -5872,8 +5865,7 @@ static int dhdsdio_download_nvram(struct dhd_bus *bus)
 	}
 
 err:
-	if (memblock)
-		kfree(memblock);
+	kfree(memblock);
 
 	if (image)
 		dhd_os_close_image(image);

drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_cmn.c

@@ -759,8 +759,7 @@ wlc_phy_t *wlc_phy_attach(shared_phy_t *sh, void *regs, int bandtype, char *vars
 	return &pi->pubpi_ro;
 
  err:
-	if (pi)
-		kfree(pi);
+	kfree(pi);
 	return NULL;
 }
 

drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_n.c

@@ -22383,8 +22383,7 @@ wlc_phy_gen_load_samples_nphy(phy_info_t *pi, u32 f_kHz, u16 max_val,
 
 	wlc_phy_loadsampletable_nphy(pi, tone_buf, num_samps);
 
-	if (tone_buf != NULL)
-		kfree(tone_buf);
+	kfree(tone_buf);
 
 	return num_samps;
 }
@@ -22431,8 +22430,7 @@ wlc_phy_loadsampletable_nphy(phy_info_t *pi, cs32 *tone_buf,
 	wlc_phy_table_write_nphy(pi, NPHY_TBL_ID_SAMPLEPLAY, num_samps, 0, 32,
 				 data_buf);
 
-	if (data_buf != NULL)
-		kfree(data_buf);
+	kfree(data_buf);
 
 	if (pi->phyhang_avoid)
 		wlc_phy_stay_in_carriersearch_nphy(pi, false);

drivers/staging/brcm80211/brcmsmac/wl_mac80211.c

@@ -1379,8 +1379,7 @@ static void wl_free(struct wl_info *wl)
 	for (t = wl->timers; t; t = next) {
 		next = t->next;
 #ifdef BCMDBG
-		if (t->name)
-			kfree(t->name);
+		kfree(t->name);
 #endif
 		kfree(t);
 	}
@@ -1716,8 +1715,7 @@ void wl_free_timer(struct wl_info *wl, struct wl_timer *t)
 	if (wl->timers == t) {
 		wl->timers = wl->timers->next;
 #ifdef BCMDBG
-		if (t->name)
-			kfree(t->name);
+		kfree(t->name);
 #endif
 		kfree(t);
 		return;
@@ -1729,8 +1727,7 @@ void wl_free_timer(struct wl_info *wl, struct wl_timer *t)
 		if (tmp->next == t) {
 			tmp->next = t->next;
 #ifdef BCMDBG
-			if (t->name)
-				kfree(t->name);
+			kfree(t->name);
 #endif
 			kfree(t);
 			return;

drivers/staging/brcm80211/brcmsmac/wlc_main.c

@@ -2160,10 +2160,8 @@ uint wlc_detach(struct wlc_info *wlc)
 
 
 #ifdef BCMDBG
-	if (wlc->country_ie_override) {
-		kfree(wlc->country_ie_override);
-		wlc->country_ie_override = NULL;
-	}
+	kfree(wlc->country_ie_override);
+	wlc->country_ie_override = NULL;
 #endif				/* BCMDBG */
 
 	{

drivers/staging/brcm80211/util/bcmotp.c

@@ -830,8 +830,7 @@ static int hndotp_nvread(void *oh, char *data, uint *len)
 	*len = offset;
 
  out:
-	if (rawotp)
-		kfree(rawotp);
+	kfree(rawotp);
 	si_setcoreidx(oi->sih, idx);
 
 	return rc;

drivers/staging/brcm80211/util/bcmsrom.c

@@ -1527,8 +1527,7 @@ static int otp_read_pci(si_t *sih, u16 *buf, uint bufsz)
 
 	memcpy(buf, otp, bufsz);
 
-	if (otp)
-		kfree(otp);
+	kfree(otp);
 
 	/* Check CRC */
 	if (buf[0] == 0xffff) {

drivers/staging/brcm80211/util/hnddma.c

@@ -559,21 +559,17 @@ static void _dma_detach(dma_info_t *di)
 				    (di->rxdpaorig));
 
 	/* free packet pointer vectors */
-	if (di->txp)
-		kfree((void *)di->txp);
-	if (di->rxp)
-		kfree((void *)di->rxp);
+	kfree(di->txp);
+	kfree(di->rxp);
 
 	/* free tx packet DMA handles */
-	if (di->txp_dmah)
-		kfree(di->txp_dmah);
+	kfree(di->txp_dmah);
 
 	/* free rx packet DMA handles */
-	if (di->rxp_dmah)
-		kfree(di->rxp_dmah);
+	kfree(di->rxp_dmah);
 
 	/* free our private info structure */
-	kfree((void *)di);
+	kfree(di);
 
 }