Fix uncompress waitpid logic to shut up the compiler [#160434]

Patch from OpenSuSE

diff --git a/file/src/compress.c b/file/src/compress.c
index 18af9a7..af69f3c 100644 (file)
--- a/file/src/compress.c
+++ b/file/src/compress.c
@@ -341,6 +341,7 @@ uncompressbuf(struct magic_set *ms, int fd, size_t method,
                file_error(ms, errno, "cannot create pipe");    
                return 0;
        }
+       pid2 = (pid_t)-1;
        switch ((pid1=fork())) {
        case 0: /* child */
                (void) close(0);
@@ -382,7 +383,7 @@ uncompressbuf(struct magic_set *ms, int fd, size_t method,
                         * fork again, to avoid blocking because both
                         * pipes filled
                         */
-                       switch (fork()) {
+                       switch ((pid2 = fork())) {
                        case 0: /* child */
                                (void)close(fdout[0]);
                                if (swrite(fdin[1], old, n) != n) {
@@ -439,7 +440,8 @@ err:
                        (void) close(fdin[1]);
                (void) close(fdout[0]);
                waitpid(pid1, NULL, 0);
-               waitpid(pid2, NULL, 0);
+               if (pid2 != (pid_t)-1)
+                       waitpid(pid2, NULL, 0);
                return n;
        }
        /*@notreached@*/