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-rw-r--r--mm/shmem.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index 5e2ff592e3b8..1ad79243cb7b 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2385,6 +2385,7 @@ static int shmem_parse_options(char *options, struct shmem_sb_info *sbinfo,
2385 bool remount) 2385 bool remount)
2386{ 2386{
2387 char *this_char, *value, *rest; 2387 char *this_char, *value, *rest;
2388 struct mempolicy *mpol = NULL;
2388 uid_t uid; 2389 uid_t uid;
2389 gid_t gid; 2390 gid_t gid;
2390 2391
@@ -2413,7 +2414,7 @@ static int shmem_parse_options(char *options, struct shmem_sb_info *sbinfo,
2413 printk(KERN_ERR 2414 printk(KERN_ERR
2414 "tmpfs: No value for mount option '%s'\n", 2415 "tmpfs: No value for mount option '%s'\n",
2415 this_char); 2416 this_char);
2416 return 1; 2417 goto error;
2417 } 2418 }
2418 2419
2419 if (!strcmp(this_char,"size")) { 2420 if (!strcmp(this_char,"size")) {
@@ -2462,19 +2463,24 @@ static int shmem_parse_options(char *options, struct shmem_sb_info *sbinfo,
2462 if (!gid_valid(sbinfo->gid)) 2463 if (!gid_valid(sbinfo->gid))
2463 goto bad_val; 2464 goto bad_val;
2464 } else if (!strcmp(this_char,"mpol")) { 2465 } else if (!strcmp(this_char,"mpol")) {
2465 if (mpol_parse_str(value, &sbinfo->mpol)) 2466 mpol_put(mpol);
2467 mpol = NULL;
2468 if (mpol_parse_str(value, &mpol))
2466 goto bad_val; 2469 goto bad_val;
2467 } else { 2470 } else {
2468 printk(KERN_ERR "tmpfs: Bad mount option %s\n", 2471 printk(KERN_ERR "tmpfs: Bad mount option %s\n",
2469 this_char); 2472 this_char);
2470 return 1; 2473 goto error;
2471 } 2474 }
2472 } 2475 }
2476 sbinfo->mpol = mpol;
2473 return 0; 2477 return 0;
2474 2478
2475bad_val: 2479bad_val:
2476 printk(KERN_ERR "tmpfs: Bad value '%s' for mount option '%s'\n", 2480 printk(KERN_ERR "tmpfs: Bad value '%s' for mount option '%s'\n",
2477 value, this_char); 2481 value, this_char);
2482error:
2483 mpol_put(mpol);
2478 return 1; 2484 return 1;
2479 2485
2480} 2486}
@@ -2550,6 +2556,7 @@ static void shmem_put_super(struct super_block *sb)
2550 struct shmem_sb_info *sbinfo = SHMEM_SB(sb); 2556 struct shmem_sb_info *sbinfo = SHMEM_SB(sb);
2551 2557
2552 percpu_counter_destroy(&sbinfo->used_blocks); 2558 percpu_counter_destroy(&sbinfo->used_blocks);
2559 mpol_put(sbinfo->mpol);
2553 kfree(sbinfo); 2560 kfree(sbinfo);
2554 sb->s_fs_info = NULL; 2561 sb->s_fs_info = NULL;
2555} 2562}