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Diffstat (limited to 'lib/zlib_inflate/inflate.c')
-rw-r--r--lib/zlib_inflate/inflate.c47
1 files changed, 0 insertions, 47 deletions
diff --git a/lib/zlib_inflate/inflate.c b/lib/zlib_inflate/inflate.c
index 0ad1ebf00947..f5ce87b0800e 100644
--- a/lib/zlib_inflate/inflate.c
+++ b/lib/zlib_inflate/inflate.c
@@ -916,50 +916,3 @@ int zlib_inflateIncomp(z_stream *z)
return Z_OK;
}
-
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-
-/* Utility function: initialize zlib, unpack binary blob, clean up zlib,
- * return len or negative error code. */
-int zlib_inflate_blob(void *gunzip_buf, unsigned sz, const void *buf, unsigned len)
-{
- const u8 *zbuf = buf;
- struct z_stream_s *strm;
- int rc;
-
- rc = -ENOMEM;
- strm = kmalloc(sizeof(*strm), GFP_KERNEL);
- if (strm == NULL)
- goto gunzip_nomem1;
- strm->workspace = kmalloc(zlib_inflate_workspacesize(), GFP_KERNEL);
- if (strm->workspace == NULL)
- goto gunzip_nomem2;
-
- /* gzip header (1f,8b,08... 10 bytes total + possible asciz filename)
- * expected to be stripped from input */
-
- strm->next_in = zbuf;
- strm->avail_in = len;
- strm->next_out = gunzip_buf;
- strm->avail_out = sz;
-
- rc = zlib_inflateInit2(strm, -MAX_WBITS);
- if (rc == Z_OK) {
- rc = zlib_inflate(strm, Z_FINISH);
- /* after Z_FINISH, only Z_STREAM_END is "we unpacked it all" */
- if (rc == Z_STREAM_END)
- rc = sz - strm->avail_out;
- else
- rc = -EINVAL;
- zlib_inflateEnd(strm);
- } else
- rc = -EINVAL;
-
- kfree(strm->workspace);
-gunzip_nomem2:
- kfree(strm);
-gunzip_nomem1:
- return rc; /* returns Z_OK (0) if successful */
-}