Using ZLIB compression with UBIFS fails if last data node is not a size of
UBIFS_BLOCK_SIZE (4096 bytes).
Easiest way to test this is trying to read a file smaller than 4k:
=> ubifsload 41000000 /etc/fstab
Loading file '/etc/fstab' to addr 0x41000000 with size 704 (0x000002c0)...
UBIFS error (pid 0): read_block: bad data node (block 0, inode 2506)
UBIFS error (pid 0): do_readpage: cannot read page 0 of inode 2506, error -22
Error reading file '/etc/fstab'
/etc/fstab not found!
exit not allowed from main input shell.
=>
With this patch:
=> ubifsload 41000000 /etc/fstab
Loading file '/etc/fstab' to addr 0x41000000 with size 704 (0x000002c0)...
Done
=>
Signed-off-by: Veli-Pekka Peltola <veli-pekka.pelt...@bluegiga.com>
---
fs/ubifs/ubifs.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/fs/ubifs/ubifs.c b/fs/ubifs/ubifs.c
index c68802b..6a68437 100644
--- a/fs/ubifs/ubifs.c
+++ b/fs/ubifs/ubifs.c
@@ -37,8 +37,7 @@ DECLARE_GLOBAL_DATA_PTR;
static int gzip_decompress(const unsigned char *in, size_t in_len,
unsigned char *out, size_t *out_len)
{
- unsigned long len = in_len;
- return zunzip(out, *out_len, (unsigned char *)in, &len, 0, 0);
+ return zunzip(out, *out_len, (unsigned char *)in, (long unsigned int
*)out_len, 0, 0);
}
/* Fake description object for the "none" compressor */
--
1.7.9.5
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