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target: Fix a memory leak in target_dev_lba_map_store()

Browse source 
strsep() modifies its first argument. Make the pointer passed to kfree()
match the return value of kmalloc().

Fixes: 229d4f112f (commit "target_core_alua: Referrals configfs integration")
Signed-off-by: Bart Van Assche <[email protected]>
Cc: Hannes Reinecke <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Andy Grover <[email protected]>
Cc: Sagi Grimberg <[email protected]>
Signed-off-by: Nicholas Bellinger <[email protected]>
This commit is contained in:
Bart Van Assche 2016-01-05 14:47:17 +01:00 • committed by Nicholas Bellinger
commit f0a8afecb2
1 changed files with 3 additions and 3 deletions
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6
drivers/target/target_core_configfs.c
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@ -2017,14 +2017,14 @@ static ssize_t target_dev_lba_map_store(struct config_item *item,
struct se_device *dev = to_device(item);
struct t10_alua_lba_map *lba_map = NULL;
struct list_head lba_list;
char *map_entries, *ptr;
char *map_entries, *orig, *ptr;
char state;
int pg_num = -1, pg;
int ret = 0, num = 0, pg_id, alua_state;
unsigned long start_lba = -1, end_lba = -1;
unsigned long segment_size = -1, segment_mult = -1;
map_entries = kstrdup(page, GFP_KERNEL);
orig = map_entries = kstrdup(page, GFP_KERNEL);
if (!map_entries)
return -ENOMEM;
@ -2122,7 +2122,7 @@ out:
} else
core_alua_set_lba_map(dev, &lba_list,
segment_size, segment_mult);
kfree(map_entries);
kfree(orig);
return count;
}