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authorIngo Molnar <mingo@elte.hu>2008-11-11 09:40:18 +0100
committerIngo Molnar <mingo@elte.hu>2008-11-11 09:40:18 +0100
commite0cb4ebcd9e5b4ddd8216c20f54445c91b1fa4b9 (patch)
treed1c3b22b7e9f02fb56927da530da09c6ee7ce0b9 /fs/jffs2/compr_lzo.c
parenta309720c876d7ad2e224bfd1982c92ae4364c82e (diff)
parent45b86a96f17cb2900f291129b0e67287400e45b2 (diff)
Merge branch 'tracing/urgent' into tracing/ftrace
Conflicts: kernel/trace/trace.c
Diffstat (limited to 'fs/jffs2/compr_lzo.c')
-rw-r--r--fs/jffs2/compr_lzo.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/fs/jffs2/compr_lzo.c b/fs/jffs2/compr_lzo.c
index 47b045797e4..90cb60d0978 100644
--- a/fs/jffs2/compr_lzo.c
+++ b/fs/jffs2/compr_lzo.c
@@ -19,7 +19,7 @@
static void *lzo_mem;
static void *lzo_compress_buf;
-static DEFINE_MUTEX(deflate_mutex);
+static DEFINE_MUTEX(deflate_mutex); /* for lzo_mem and lzo_compress_buf */
static void free_workspace(void)
{
@@ -49,18 +49,21 @@ static int jffs2_lzo_compress(unsigned char *data_in, unsigned char *cpage_out,
mutex_lock(&deflate_mutex);
ret = lzo1x_1_compress(data_in, *sourcelen, lzo_compress_buf, &compress_size, lzo_mem);
- mutex_unlock(&deflate_mutex);
-
if (ret != LZO_E_OK)
- return -1;
+ goto fail;
if (compress_size > *dstlen)
- return -1;
+ goto fail;
memcpy(cpage_out, lzo_compress_buf, compress_size);
- *dstlen = compress_size;
+ mutex_unlock(&deflate_mutex);
+ *dstlen = compress_size;
return 0;
+
+ fail:
+ mutex_unlock(&deflate_mutex);
+ return -1;
}
static int jffs2_lzo_decompress(unsigned char *data_in, unsigned char *cpage_out,