diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2015-07-17 16:24:26 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-07-17 16:39:54 -0700 |
| commit | 5a09e6ce90e1bf26f0915e7e31329402766ffead (patch) | |
| tree | bed9fcfa10bbe4fd2ea22f768134706d3fcdf7ff /lib/decompress.c | |
| parent | d56e84b4064d65285161d6bfa04382e1cdd4e49c (diff) | |
| download | lwn-5a09e6ce90e1bf26f0915e7e31329402766ffead.tar.gz lwn-5a09e6ce90e1bf26f0915e7e31329402766ffead.zip | |
lib/decompress: set the compressor name to NULL on error
Without this we end up using the previous name of the compressor in the
loop in unpack_rootfs. For example we get errors like "compression
method gzip not configured" even when we have CONFIG_DECOMPRESS_GZIP
enabled.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/decompress.c')
| -rw-r--r-- | lib/decompress.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/decompress.c b/lib/decompress.c index 528ff932d8e4..62696dff5730 100644 --- a/lib/decompress.c +++ b/lib/decompress.c @@ -59,8 +59,11 @@ decompress_fn __init decompress_method(const unsigned char *inbuf, long len, { const struct compress_format *cf; - if (len < 2) + if (len < 2) { + if (name) + *name = NULL; return NULL; /* Need at least this much... */ + } pr_debug("Compressed data magic: %#.2x %#.2x\n", inbuf[0], inbuf[1]); |