jffs2_kill_sb(): deal with failed allocations
jffs2_fill_super() might fail to allocate jffs2_sb_info; jffs2_kill_sb() must survive that. Cc: stable@kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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@ -342,7 +342,7 @@ static void jffs2_put_super (struct super_block *sb)
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static void jffs2_kill_sb(struct super_block *sb)
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{
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struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
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if (!sb_rdonly(sb))
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if (c && !sb_rdonly(sb))
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jffs2_stop_garbage_collect_thread(c);
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kill_mtd_super(sb);
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kfree(c);
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