[PATCH 03/14] Big kfree NULL check cleanup - drivers/mtd
From: Jesper Juhl
Date: Thu Oct 13 2005 - 14:23:56 EST
This is the drivers/mtd part of the big kfree cleanup patch.
Remove pointless checks for NULL prior to calling kfree() in drivers/mtd/.
Sorry about the long Cc: list, but I wanted to make sure I included everyone
who's code I've changed with this patch.
Signed-off-by: Jesper Juhl <jesper.juhl@xxxxxxxxx>
---
Please see the initial announcement mail on LKML with subject
"[PATCH 00/14] Big kfree NULL check cleanup"
for additional details.
drivers/mtd/chips/cfi_cmdset_0001.c | 3 +--
drivers/mtd/chips/cfi_cmdset_0002.c | 4 ++--
drivers/mtd/devices/blkmtd.c | 7 ++-----
drivers/mtd/inftlcore.c | 12 ++++--------
drivers/mtd/maps/amd76xrom.c | 4 +---
drivers/mtd/maps/bast-flash.c | 3 +--
drivers/mtd/maps/ceiva.c | 3 +--
drivers/mtd/maps/ichxrom.c | 5 ++---
drivers/mtd/maps/integrator-flash.c | 6 ++----
drivers/mtd/maps/ipaq-flash.c | 3 +--
drivers/mtd/maps/iq80310.c | 3 +--
drivers/mtd/maps/ixp2000.c | 3 +--
drivers/mtd/maps/ixp4xx.c | 3 +--
drivers/mtd/maps/lubbock-flash.c | 3 +--
drivers/mtd/maps/omap-toto-flash.c | 3 +--
drivers/mtd/maps/sa1100-flash.c | 3 +--
drivers/mtd/maps/sun_uflash.c | 4 +---
drivers/mtd/maps/tqm8xxl.c | 6 ++----
drivers/mtd/nand/nand_base.c | 5 ++---
drivers/mtd/nftlcore.c | 12 ++++--------
20 files changed, 32 insertions(+), 63 deletions(-)
--- linux-2.6.14-rc4-orig/drivers/mtd/maps/omap-toto-flash.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/maps/omap-toto-flash.c 2005-10-12 16:17:34.000000000 +0200
@@ -124,8 +124,7 @@ static void __exit omap_toto_mtd_cleanu
if (flash_mtd) {
del_mtd_partitions(flash_mtd);
map_destroy(flash_mtd);
- if (parsed_parts)
- kfree(parsed_parts);
+ kfree(parsed_parts);
}
}
--- linux-2.6.14-rc4-orig/drivers/mtd/maps/ipaq-flash.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/maps/ipaq-flash.c 2005-10-12 16:17:48.000000000 +0200
@@ -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);
}
}
--- linux-2.6.14-rc4-orig/drivers/mtd/maps/sa1100-flash.c 2005-10-11 22:41:10.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/maps/sa1100-flash.c 2005-10-12 16:17:58.000000000 +0200
@@ -235,8 +235,7 @@ static void sa1100_destroy(struct sa_inf
#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]);
--- linux-2.6.14-rc4-orig/drivers/mtd/maps/iq80310.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/maps/iq80310.c 2005-10-12 16:18:05.000000000 +0200
@@ -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);
--- linux-2.6.14-rc4-orig/drivers/mtd/maps/ixp4xx.c 2005-10-11 22:41:10.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/maps/ixp4xx.c 2005-10-12 16:18:23.000000000 +0200
@@ -120,8 +120,7 @@ static int ixp4xx_flash_remove(struct de
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);
--- linux-2.6.14-rc4-orig/drivers/mtd/maps/amd76xrom.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/maps/amd76xrom.c 2005-10-12 16:18:41.000000000 +0200
@@ -259,9 +259,7 @@ static int __devinit amd76xrom_init_one
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);
--- linux-2.6.14-rc4-orig/drivers/mtd/maps/tqm8xxl.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/maps/tqm8xxl.c 2005-10-12 16:19:17.000000000 +0200
@@ -222,10 +222,8 @@ 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;
}
--- linux-2.6.14-rc4-orig/drivers/mtd/maps/integrator-flash.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/maps/integrator-flash.c 2005-10-12 16:19:37.000000000 +0200
@@ -148,8 +148,7 @@ static int armflash_probe(struct device
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
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);
--- linux-2.6.14-rc4-orig/drivers/mtd/maps/ixp2000.c 2005-10-11 22:41:10.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/maps/ixp2000.c 2005-10-12 16:20:13.000000000 +0200
@@ -126,8 +126,7 @@ static int ixp2000_flash_remove(struct d
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);
--- linux-2.6.14-rc4-orig/drivers/mtd/maps/lubbock-flash.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/maps/lubbock-flash.c 2005-10-12 16:20:20.000000000 +0200
@@ -155,8 +155,7 @@ 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]);
}
}
--- linux-2.6.14-rc4-orig/drivers/mtd/maps/bast-flash.c 2005-10-11 22:41:10.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/maps/bast-flash.c 2005-10-12 16:20:29.000000000 +0200
@@ -103,8 +103,7 @@ static int bast_flash_remove(struct devi
map_destroy(info->mtd);
}
- if (info->partitions)
- kfree(info->partitions);
+ kfree(info->partitions);
if (info->area) {
release_resource(info->area);
--- linux-2.6.14-rc4-orig/drivers/mtd/maps/sun_uflash.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/maps/sun_uflash.c 2005-10-12 16:20:56.000000000 +0200
@@ -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);
}
}
--- linux-2.6.14-rc4-orig/drivers/mtd/maps/ichxrom.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/maps/ichxrom.c 2005-10-12 16:21:20.000000000 +0200
@@ -306,9 +306,8 @@ static int __devinit ichxrom_init_one (s
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);
--- linux-2.6.14-rc4-orig/drivers/mtd/maps/ceiva.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/maps/ceiva.c 2005-10-12 16:21:37.000000000 +0200
@@ -312,8 +312,7 @@ static void __init clps_locate_partition
static void __exit clps_destroy_partitions(void)
{
- if (parsed_parts)
- kfree(parsed_parts);
+ kfree(parsed_parts);
}
static struct mtd_info *mymtd;
--- linux-2.6.14-rc4-orig/drivers/mtd/nand/nand_base.c 2005-10-11 22:41:10.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/nand/nand_base.c 2005-10-12 16:22:12.000000000 +0200
@@ -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);
--- linux-2.6.14-rc4-orig/drivers/mtd/devices/blkmtd.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/devices/blkmtd.c 2005-10-12 16:22:46.000000000 +0200
@@ -539,11 +539,8 @@ static void free_device(struct blkmtd_de
{
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);
--- linux-2.6.14-rc4-orig/drivers/mtd/inftlcore.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/inftlcore.c 2005-10-12 16:23:13.000000000 +0200
@@ -126,10 +126,8 @@ static void inftl_add_mtd(struct mtd_blk
}
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_
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);
}
--- linux-2.6.14-rc4-orig/drivers/mtd/chips/cfi_cmdset_0001.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/chips/cfi_cmdset_0001.c 2005-10-12 16:23:58.000000000 +0200
@@ -455,8 +455,7 @@ static struct mtd_info *cfi_intelext_set
setup_err:
if(mtd) {
- if(mtd->eraseregions)
- kfree(mtd->eraseregions);
+ kfree(mtd->eraseregions);
kfree(mtd);
}
kfree(cfi->cmdset_priv);
--- linux-2.6.14-rc4-orig/drivers/mtd/chips/cfi_cmdset_0002.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/chips/cfi_cmdset_0002.c 2005-10-12 16:24:25.000000000 +0200
@@ -378,8 +378,7 @@ static struct mtd_info *cfi_amdstd_setup
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 mt
{
struct map_info *map = mtd->priv;
struct cfi_private *cfi = map->fldrv_priv;
+
kfree(cfi->cmdset_priv);
kfree(cfi->cfiq);
kfree(cfi);
--- linux-2.6.14-rc4-orig/drivers/mtd/nftlcore.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc4/drivers/mtd/nftlcore.c 2005-10-12 16:24:52.000000000 +0200
@@ -114,10 +114,8 @@ static void nftl_add_mtd(struct mtd_blkt
}
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_b
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);
}
-
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