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path: root/drivers/mtd/sm_ftl.c
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Diffstat (limited to 'drivers/mtd/sm_ftl.c')
-rw-r--r--drivers/mtd/sm_ftl.c22
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index ac0d6a8..ed3d6cd 100644
--- a/drivers/mtd/sm_ftl.c
+++ b/drivers/mtd/sm_ftl.c
@@ -64,12 +64,16 @@ struct attribute_group *sm_create_sysfs_attributes(struct sm_ftl *ftl)
SM_SMALL_PAGE - SM_CIS_VENDOR_OFFSET);
char *vendor = kmalloc(vendor_len, GFP_KERNEL);
+ if (!vendor)
+ goto error1;
memcpy(vendor, ftl->cis_buffer + SM_CIS_VENDOR_OFFSET, vendor_len);
vendor[vendor_len] = 0;
/* Initialize sysfs attributes */
vendor_attribute =
kzalloc(sizeof(struct sm_sysfs_attribute), GFP_KERNEL);
+ if (!vendor_attribute)
+ goto error2;
sysfs_attr_init(&vendor_attribute->dev_attr.attr);
@@ -83,12 +87,24 @@ struct attribute_group *sm_create_sysfs_attributes(struct sm_ftl *ftl)
/* Create array of pointers to the attributes */
attributes = kzalloc(sizeof(struct attribute *) * (NUM_ATTRIBUTES + 1),
GFP_KERNEL);
+ if (!attributes)
+ goto error3;
attributes[0] = &vendor_attribute->dev_attr.attr;
/* Finally create the attribute group */
attr_group = kzalloc(sizeof(struct attribute_group), GFP_KERNEL);
+ if (!attr_group)
+ goto error4;
attr_group->attrs = attributes;
return attr_group;
+error4:
+ kfree(attributes);
+error3:
+ kfree(vendor_attribute);
+error2:
+ kfree(vendor);
+error1:
+ return NULL;
}
void sm_delete_sysfs_attributes(struct sm_ftl *ftl)
@@ -524,7 +540,7 @@ static int sm_check_block(struct sm_ftl *ftl, int zone, int block)
return -EIO;
}
- /* If the block is sliced (partialy erased usually) erase it */
+ /* If the block is sliced (partially erased usually) erase it */
if (i == 2) {
sm_erase_block(ftl, zone, block, 1);
return 1;
@@ -862,7 +878,7 @@ static int sm_init_zone(struct sm_ftl *ftl, int zone_num)
return 0;
}
-/* Get and automaticly initialize an FTL mapping for one zone */
+/* Get and automatically initialize an FTL mapping for one zone */
struct ftl_zone *sm_get_zone(struct sm_ftl *ftl, int zone_num)
{
struct ftl_zone *zone;
@@ -1178,6 +1194,8 @@ static void sm_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
}
ftl->disk_attributes = sm_create_sysfs_attributes(ftl);
+ if (!ftl->disk_attributes)
+ goto error6;
trans->disk_attributes = ftl->disk_attributes;
sm_printk("Found %d MiB xD/SmartMedia FTL on mtd%d",