Hi Herbert.
Here's a resend of a patch I'm using in Suspend2's new cryptoapi
support, which is needed for us to successfully compress pages using
deflate. It's along the lines of the existing fix in the decompression
code.
Regards,
Nigel
diff -ruNp 190-cryptoapi-deflate.patch-old/crypto/deflate.c 190-cryptoapi-deflate.patch-new/crypto/deflate.c
--- 190-cryptoapi-deflate.patch-old/crypto/deflate.c 2005-06-20 11:46:49.000000000 +1000
+++ 190-cryptoapi-deflate.patch-new/crypto/deflate.c 2005-07-04 23:14:20.000000000 +1000
@@ -143,8 +143,15 @@ static int deflate_compress(void *ctx, c
ret = zlib_deflate(stream, Z_FINISH);
if (ret != Z_STREAM_END) {
- ret = -EINVAL;
- goto out;
+ if (!(ret == Z_OK && !stream->avail_in && !stream->avail_out)) {
+ ret = -EINVAL;
+ goto out;
+ } else {
+ u8 zerostuff = 0;
+ stream->next_out = &zerostuff;
+ stream->avail_out = 1;
+ ret = zlib_deflate(stream, Z_FINISH);
+ }
}
ret = 0;
*dlen = stream->total_out;
--
Evolution.
Enumerate the requirements.
Consider the interdependencies.
Calculate the probabilities.
Be amazed that people believe it happened.
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