pam: fix compiler warnings

Signed-off-by: Christian Brauner (Microsoft) <christian.brauner@ubuntu.com>

diff --git a/src/lxc/pam/pam_cgfs.c b/src/lxc/pam/pam_cgfs.c
index 477e6c9b4e9bfac4ae18e8c4f63d898f553af2bb..04b26f115ae012fc1338bad6e4db2579c1578769 100644 (file)
--- a/src/lxc/pam/pam_cgfs.c
+++ b/src/lxc/pam/pam_cgfs.c
@@ -39,10 +39,10 @@
 #include "strlcat.h"
 #endif
 
-#define pam_cgfs_debug_stream(stream, format, ...)                                \
-       do {                                                                   \
-               fprintf(stream, "%s: %d: %s: " format, __FILE__, __LINE__,     \
-                       __func__, __VA_ARGS__);                                \
+#define pam_cgfs_debug_stream(stream, format, ...)                         \
+       do {                                                               \
+               fprintf(stream, "%s: %d: %s: " format, __FILE__, __LINE__, \
+                       __func__, __VA_ARGS__);                            \
        } while (false)
 
 #define pam_cgfs_error(format, ...) pam_cgfs_debug_stream(stderr, format, __VA_ARGS__)
@@ -50,7 +50,9 @@
 #ifdef DEBUG
 #define pam_cgfs_debug(format, ...) pam_cgfs_error(format, __VA_ARGS__)
 #else
-#define pam_cgfs_debug(format, ...)
+#define pam_cgfs_debug(format, ...) \
+       do {                     \
+       } while (false)
 #endif /* DEBUG */
 
 static enum cg_mount_mode {
@@ -1486,7 +1488,7 @@ static bool get_uid_gid(const char *user, uid_t *uid, gid_t *gid)
        struct passwd pwent;
        struct passwd *pwentp = NULL;
        char *buf;
-       size_t bufsize;
+       ssize_t bufsize;
        int ret;
 
        bufsize = sysconf(_SC_GETPW_R_SIZE_MAX);