Merge branch 'akpm' (patches from Andrew)

Merge more updates from Andrew Morton:

 - almost all of the rest of MM

 - misc bits

 - KASAN updates

 - procfs

 - lib/ updates

 - checkpatch updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (124 commits)
  checkpatch: remove false unbalanced braces warning
  checkpatch: notice unbalanced else braces in a patch
  checkpatch: add another old address for the FSF
  checkpatch: update $logFunctions
  checkpatch: warn on logging continuations
  checkpatch: warn on embedded function names
  lib/lz4: remove back-compat wrappers
  fs/pstore: fs/squashfs: change usage of LZ4 to work with new LZ4 version
  crypto: change LZ4 modules to work with new LZ4 module version
  lib/decompress_unlz4: change module to work with new LZ4 module version
  lib: update LZ4 compressor module
  lib/test_sort.c: make it explicitly non-modular
  lib: add CONFIG_TEST_SORT to enable self-test of sort()
  rbtree: use designated initializers
  linux/kernel.h: fix DIV_ROUND_CLOSEST to support negative divisors
  lib/find_bit.c: micro-optimise find_next_*_bit
  lib: add module support to atomic64 tests
  lib: add module support to glob tests
  lib: add module support to crc32 tests
  kernel/ksysfs.c: add __ro_after_init to bin_attribute structure
  ...

1 files changed, 13 insertions, 9 deletions

diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 729677e18e36..efab7b64925b 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -342,31 +342,35 @@ static int compress_lz4(const void *in, void *out, size_t inlen, size_t outlen)
 {
 	int ret;
 
-	ret = lz4_compress(in, inlen, out, &outlen, workspace);
-	if (ret) {
-		pr_err("lz4_compress error, ret = %d!\n", ret);
+	ret = LZ4_compress_default(in, out, inlen, outlen, workspace);
+	if (!ret) {
+		pr_err("LZ4_compress_default error; compression failed!\n");
 		return -EIO;
 	}
 
-	return outlen;
+	return ret;
 }
 
 static int decompress_lz4(void *in, void *out, size_t inlen, size_t outlen)
 {
 	int ret;
 
-	ret = lz4_decompress_unknownoutputsize(in, inlen, out, &outlen);
-	if (ret) {
-		pr_err("lz4_decompress error, ret = %d!\n", ret);
+	ret = LZ4_decompress_safe(in, out, inlen, outlen);
+	if (ret < 0) {
+		/*
+		 * LZ4_decompress_safe will return an error code
+		 * (< 0) if decompression failed
+		 */
+		pr_err("LZ4_decompress_safe error, ret = %d!\n", ret);
 		return -EIO;
 	}
 
-	return outlen;
+	return ret;
 }
 
 static void allocate_lz4(void)
 {
-	big_oops_buf_sz = lz4_compressbound(psinfo->bufsize);
+	big_oops_buf_sz = LZ4_compressBound(psinfo->bufsize);
 	big_oops_buf = kmalloc(big_oops_buf_sz, GFP_KERNEL);
 	if (big_oops_buf) {
 		workspace = kmalloc(LZ4_MEM_COMPRESS, GFP_KERNEL);