compress: fix mmap error handling

2015-10-14 10:15:27 -04:00
parent 9f35e8b458
commit e068517205
1 changed files with 2 additions and 2 deletions
@@ -460,7 +460,7 @@ int compress_stream_lz4(int fdf, int fdt, uint64_t max_bytes) {
                return -EINVAL;

        src = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fdf, 0);
-        if (!src)
+        if (src == MAP_FAILED)
                return -errno;

        log_debug("Buffer size is %zu bytes, header size %zu bytes.", size, n);
@@ -688,7 +688,7 @@ static int decompress_stream_lz4_v2(int in, int out, uint64_t max_bytes) {
                return -ENOMEM;

        src = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, in, 0);
-        if (!src)
+        if (src == MAP_FAILED)
                return -errno;

        while (total_in < (size_t) st.st_size) {