ext4: fix missing ext4_unlock_group in error path
If we try to free a block which is already freed, the code was returning without first unlocking the group. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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@ -4441,6 +4441,7 @@ ext4_mb_free_metadata(handle_t *handle, struct ext4_buddy *e4b,
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else if (block >= (entry->start_blk + entry->count))
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n = &(*n)->rb_right;
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else {
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ext4_unlock_group(sb, group);
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ext4_error(sb, __func__,
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"Double free of blocks %d (%d %d)\n",
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block, entry->start_blk, entry->count);
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