dmuserd: Fix error checking
We change read_all() and write_all() to return signed values, so
our negative error return values will be correctly caught.
Test: TreeHugger
Change-Id: I4d03d4475bccb40ae4b84a846966139b34ede2bd
diff --git a/fs_mgr/tools/dmuserd.cpp b/fs_mgr/tools/dmuserd.cpp
index 92f5878..e50a4a2 100644
--- a/fs_mgr/tools/dmuserd.cpp
+++ b/fs_mgr/tools/dmuserd.cpp
@@ -76,7 +76,7 @@
static bool verbose = false;
-size_t write_all(int fd, void* buf, size_t len) {
+ssize_t write_all(int fd, void* buf, size_t len) {
char* buf_c = (char*)buf;
ssize_t total = 0;
ssize_t once;
@@ -94,7 +94,7 @@
return total;
}
-size_t read_all(int fd, void* buf, size_t len) {
+ssize_t read_all(int fd, void* buf, size_t len) {
char* buf_c = (char*)buf;
ssize_t total = 0;
ssize_t once;