[PATCH] kfree cleanup: drivers/mtd

This is the drivers/mtd part of the big kfree cleanup patch.

Remove pointless checks for NULL prior to calling kfree() in drivers/mtd/.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Acked-by: Joern Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

20 files changed, 32 insertions, 63 deletions

diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index 0cfcd88468e0..c3fc9b2f21fb 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -455,8 +455,7 @@ static struct mtd_info *cfi_intelext_setup(struct mtd_info *mtd)
 
  setup_err:
 	if(mtd) {
-		if(mtd->eraseregions)
-			kfree(mtd->eraseregions);
+		kfree(mtd->eraseregions);
 		kfree(mtd);
 	}
 	kfree(cfi->cmdset_priv);
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index 8505f118f2db..0e6475050da9 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -378,8 +378,7 @@ static struct mtd_info *cfi_amdstd_setup(struct mtd_info *mtd)
 
  setup_err:
 	if(mtd) {
-		if(mtd->eraseregions)
-			kfree(mtd->eraseregions);
+		kfree(mtd->eraseregions);
 		kfree(mtd);
 	}
 	kfree(cfi->cmdset_priv);
@@ -1742,6 +1741,7 @@ static void cfi_amdstd_destroy(struct mtd_info *mtd)
 {
 	struct map_info *map = mtd->priv;
 	struct cfi_private *cfi = map->fldrv_priv;
+
 	kfree(cfi->cmdset_priv);
 	kfree(cfi->cfiq);
 	kfree(cfi);
diff --git a/drivers/mtd/devices/blkmtd.c b/drivers/mtd/devices/blkmtd.c
index 662e807801ed..59a29e616a22 100644
--- a/drivers/mtd/devices/blkmtd.c
+++ b/drivers/mtd/devices/blkmtd.c
@@ -539,11 +539,8 @@ static void free_device(struct blkmtd_dev *dev)
 {
 	DEBUG(2, "blkmtd: free_device() dev = %p\n", dev);
 	if(dev) {
-		if(dev->mtd_info.eraseregions)
-			kfree(dev->mtd_info.eraseregions);
-		if(dev->mtd_info.name)
-			kfree(dev->mtd_info.name);
-
+		kfree(dev->mtd_info.eraseregions);
+		kfree(dev->mtd_info.name);
 		if(dev->blkdev) {
 			invalidate_inode_pages(dev->blkdev->bd_inode->i_mapping);
 			close_bdev_excl(dev->blkdev);
diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c
index 39eb53f6551f..8db65bf029ea 100644
--- a/drivers/mtd/inftlcore.c
+++ b/drivers/mtd/inftlcore.c
@@ -126,10 +126,8 @@ static void inftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
 	}
 
 	if (add_mtd_blktrans_dev(&inftl->mbd)) {
-		if (inftl->PUtable)
-			kfree(inftl->PUtable);
-		if (inftl->VUtable)
-			kfree(inftl->VUtable);
+		kfree(inftl->PUtable);
+		kfree(inftl->VUtable);
 		kfree(inftl);
 		return;
 	}
@@ -147,10 +145,8 @@ static void inftl_remove_dev(struct mtd_blktrans_dev *dev)
 
 	del_mtd_blktrans_dev(dev);
 
-	if (inftl->PUtable)
-		kfree(inftl->PUtable);
-	if (inftl->VUtable)
-		kfree(inftl->VUtable);
+	kfree(inftl->PUtable);
+	kfree(inftl->VUtable);
 	kfree(inftl);
 }
 
diff --git a/drivers/mtd/maps/amd76xrom.c b/drivers/mtd/maps/amd76xrom.c
index e8a900a77685..9a64149f431d 100644
--- a/drivers/mtd/maps/amd76xrom.c
+++ b/drivers/mtd/maps/amd76xrom.c
@@ -259,9 +259,7 @@ static int __devinit amd76xrom_init_one (struct pci_dev *pdev,
 
  out:
 	/* Free any left over map structures */
-	if (map) {
-		kfree(map);
-	}
+	kfree(map);
 	/* See if I have any map structures */
 	if (list_empty(&window->maps)) {
 		amd76xrom_cleanup(window);
diff --git a/drivers/mtd/maps/bast-flash.c b/drivers/mtd/maps/bast-flash.c
index bfe994e59265..8c19d722ac79 100644
--- a/drivers/mtd/maps/bast-flash.c
+++ b/drivers/mtd/maps/bast-flash.c
@@ -104,8 +104,7 @@ static int bast_flash_remove(struct device *dev)
 		map_destroy(info->mtd);
 	}
 
-	if (info->partitions)
-		kfree(info->partitions);
+	kfree(info->partitions);
 
 	if (info->area) {
 		release_resource(info->area);
diff --git a/drivers/mtd/maps/ceiva.c b/drivers/mtd/maps/ceiva.c
index c68b31dc7e6d..5a95ab370a97 100644
--- a/drivers/mtd/maps/ceiva.c
+++ b/drivers/mtd/maps/ceiva.c
@@ -313,8 +313,7 @@ static void __init clps_locate_partitions(struct mtd_info *mtd)
 
 static void __exit clps_destroy_partitions(void)
 {
-	if (parsed_parts)
-		kfree(parsed_parts);
+	kfree(parsed_parts);
 }
 
 static struct mtd_info *mymtd;
diff --git a/drivers/mtd/maps/ichxrom.c b/drivers/mtd/maps/ichxrom.c
index e505207cd489..c5e2111ba146 100644
--- a/drivers/mtd/maps/ichxrom.c
+++ b/drivers/mtd/maps/ichxrom.c
@@ -306,9 +306,8 @@ static int __devinit ichxrom_init_one (struct pci_dev *pdev,
 
  out:
 	/* Free any left over map structures */
-	if (map) {
-		kfree(map);
-	}
+	kfree(map);
+
 	/* See if I have any map structures */
 	if (list_empty(&window->maps)) {
 		ichxrom_cleanup(window);
diff --git a/drivers/mtd/maps/integrator-flash.c b/drivers/mtd/maps/integrator-flash.c
index d14a0185b8f4..93f50d6d5488 100644
--- a/drivers/mtd/maps/integrator-flash.c
+++ b/drivers/mtd/maps/integrator-flash.c
@@ -148,8 +148,7 @@ static int armflash_probe(struct device *_dev)
 			del_mtd_partitions(info->mtd);
 			map_destroy(info->mtd);
 		}
-		if (info->parts)
-			kfree(info->parts);
+		kfree(info->parts);
 
  no_device:
 		iounmap(base);
@@ -176,8 +175,7 @@ static int armflash_remove(struct device *_dev)
 			del_mtd_partitions(info->mtd);
 			map_destroy(info->mtd);
 		}
-		if (info->parts)
-			kfree(info->parts);
+		kfree(info->parts);
 
 		iounmap(info->map.virt);
 		release_resource(info->res);
diff --git a/drivers/mtd/maps/ipaq-flash.c b/drivers/mtd/maps/ipaq-flash.c
index 712401810841..70b0e0b82c34 100644
--- a/drivers/mtd/maps/ipaq-flash.c
+++ b/drivers/mtd/maps/ipaq-flash.c
@@ -431,8 +431,7 @@ static void __exit ipaq_mtd_cleanup(void)
 				if (my_sub_mtd[i])
 					map_destroy(my_sub_mtd[i]);
 			}
-		if (parsed_parts)
-			kfree(parsed_parts);
+		kfree(parsed_parts);
 	}
 }
 
diff --git a/drivers/mtd/maps/iq80310.c b/drivers/mtd/maps/iq80310.c
index 558d014e7acc..2e7577492a2c 100644
--- a/drivers/mtd/maps/iq80310.c
+++ b/drivers/mtd/maps/iq80310.c
@@ -103,8 +103,7 @@ static void __exit cleanup_iq80310(void)
 	if (mymtd) {
 		del_mtd_partitions(mymtd);
 		map_destroy(mymtd);
-		if (parsed_parts)
-			kfree(parsed_parts);
+		kfree(parsed_parts);
 	}
 	if (iq80310_map.virt)
 		iounmap((void *)iq80310_map.virt);
diff --git a/drivers/mtd/maps/ixp2000.c b/drivers/mtd/maps/ixp2000.c
index 00b9f67580f1..6f36497022d1 100644
--- a/drivers/mtd/maps/ixp2000.c
+++ b/drivers/mtd/maps/ixp2000.c
@@ -129,8 +129,7 @@ static int ixp2000_flash_remove(struct device *_dev)
 	if (info->map.map_priv_1)
 		iounmap((void *) info->map.map_priv_1);
 
-	if (info->partitions) {
-		kfree(info->partitions); }
+	kfree(info->partitions);
 
 	if (info->res) {
 		release_resource(info->res);
diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c
index 733a9297a562..0d87c02dee04 100644
--- a/drivers/mtd/maps/ixp4xx.c
+++ b/drivers/mtd/maps/ixp4xx.c
@@ -124,8 +124,7 @@ static int ixp4xx_flash_remove(struct device *_dev)
 	if (info->map.map_priv_1)
 		iounmap((void *) info->map.map_priv_1);
 
-	if (info->partitions)
-		kfree(info->partitions);
+	kfree(info->partitions);
 
 	if (info->res) {
 		release_resource(info->res);
diff --git a/drivers/mtd/maps/lubbock-flash.c b/drivers/mtd/maps/lubbock-flash.c
index 2337e0c46750..2b4c5058787d 100644
--- a/drivers/mtd/maps/lubbock-flash.c
+++ b/drivers/mtd/maps/lubbock-flash.c
@@ -158,8 +158,7 @@ static void __exit cleanup_lubbock(void)
 		if (lubbock_maps[i].cached)
 			iounmap(lubbock_maps[i].cached);
 
-		if (parsed_parts[i])
-			kfree(parsed_parts[i]);
+		kfree(parsed_parts[i]);
 	}
 }
 
diff --git a/drivers/mtd/maps/omap-toto-flash.c b/drivers/mtd/maps/omap-toto-flash.c
index da36e8dddd17..763304154a92 100644
--- a/drivers/mtd/maps/omap-toto-flash.c
+++ b/drivers/mtd/maps/omap-toto-flash.c
@@ -124,8 +124,7 @@ static void  __exit omap_toto_mtd_cleanup(void)
 	if (flash_mtd) {
 		del_mtd_partitions(flash_mtd);
 		map_destroy(flash_mtd);
-		if (parsed_parts)
-			kfree(parsed_parts);
+		kfree(parsed_parts);
 	}
 }
 
diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c
index c8d0da19d897..a31f6ee8a4be 100644
--- a/drivers/mtd/maps/sa1100-flash.c
+++ b/drivers/mtd/maps/sa1100-flash.c
@@ -241,8 +241,7 @@ static void sa1100_destroy(struct sa_info *info, struct flash_platform_data *pla
 #endif
 	}
 
-	if (info->parts)
-		kfree(info->parts);
+	kfree(info->parts);
 
 	for (i = info->num_subdev - 1; i >= 0; i--)
 		sa1100_destroy_subdev(&info->subdev[i]);
diff --git a/drivers/mtd/maps/sun_uflash.c b/drivers/mtd/maps/sun_uflash.c
index 29091d10030a..1355c28f90a4 100644
--- a/drivers/mtd/maps/sun_uflash.c
+++ b/drivers/mtd/maps/sun_uflash.c
@@ -166,9 +166,7 @@ static void __exit uflash_cleanup(void)
 			iounmap(udev->map.virt);
 			udev->map.virt = NULL;
 		}
-		if(0 != udev->name) {
-			kfree(udev->name);
-		}
+		kfree(udev->name);
 		kfree(udev);
 	}	
 }
diff --git a/drivers/mtd/maps/tqm8xxl.c b/drivers/mtd/maps/tqm8xxl.c
index 4e28b977f224..0aca8179f27f 100644
--- a/drivers/mtd/maps/tqm8xxl.c
+++ b/drivers/mtd/maps/tqm8xxl.c
@@ -224,10 +224,8 @@ int __init init_tqm_mtd(void)
 error_mem:
 	for(idx = 0 ; idx < FLASH_BANK_MAX ; idx++) {
 		if(map_banks[idx] != NULL) {
-			if(map_banks[idx]->name != NULL) {
-				kfree(map_banks[idx]->name);
-				map_banks[idx]->name = NULL;
-			}
+			kfree(map_banks[idx]->name);
+			map_banks[idx]->name = NULL;
 			kfree(map_banks[idx]);
 			map_banks[idx] = NULL;
 		}
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 04e54318bc6a..8e78d7b96a56 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2676,9 +2676,8 @@ void nand_release (struct mtd_info *mtd)
 	/* Deregister the device */
 	del_mtd_device (mtd);
 
-	/* Free bad block table memory, if allocated */
-	if (this->bbt)
-		kfree (this->bbt);
+	/* Free bad block table memory */
+	kfree (this->bbt);
 	/* Buffer allocated by nand_scan ? */
 	if (this->options & NAND_OOBBUF_ALLOC)
 		kfree (this->oob_buf);
diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c
index b2014043634f..062ff3877536 100644
--- a/drivers/mtd/nftlcore.c
+++ b/drivers/mtd/nftlcore.c
@@ -114,10 +114,8 @@ static void nftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
 	}
 
 	if (add_mtd_blktrans_dev(&nftl->mbd)) {
-		if (nftl->ReplUnitTable)
-			kfree(nftl->ReplUnitTable);
-		if (nftl->EUNtable)
-			kfree(nftl->EUNtable);
+		kfree(nftl->ReplUnitTable);
+		kfree(nftl->EUNtable);
 		kfree(nftl);
 		return;
 	}
@@ -133,10 +131,8 @@ static void nftl_remove_dev(struct mtd_blktrans_dev *dev)
 	DEBUG(MTD_DEBUG_LEVEL1, "NFTL: remove_dev (i=%d)\n", dev->devnum);
 
 	del_mtd_blktrans_dev(dev);
-	if (nftl->ReplUnitTable)
-		kfree(nftl->ReplUnitTable);
-	if (nftl->EUNtable)
-		kfree(nftl->EUNtable);
+	kfree(nftl->ReplUnitTable);
+	kfree(nftl->EUNtable);
 	kfree(nftl);
 }