check_sha1_signature: check return value from read_istream

diff --git a/run-command.c b/run-command.c
index 07e27ff4c829bf4e5dffbc61ac4f86f757e121c4..765c2ce0567ad0d75270283397d63eac3674c01a 100644 (file)
--- a/run-command.c
+++ b/run-command.c
@@ -273,7 +273,7 @@ int start_command(struct child_process *cmd)
 {
        int need_in, need_out, need_err;
        int fdin[2], fdout[2], fderr[2];
-       int failed_errno = failed_errno;
+       int failed_errno;
        char *str;
 
        /*
@@ -341,6 +341,7 @@ int start_command(struct child_process *cmd)
                notify_pipe[0] = notify_pipe[1] = -1;
 
        cmd->pid = fork();
+       failed_errno = errno;
        if (!cmd->pid) {
                /*
                 * Redirect the channel to write syscall error messages to
@@ -420,7 +421,7 @@ int start_command(struct child_process *cmd)
        }
        if (cmd->pid < 0)
                error("cannot fork() for %s: %s", cmd->argv[0],
-                       strerror(failed_errno = errno));
+                       strerror(errno));
        else if (cmd->clean_on_exit)
                mark_child_for_cleanup(cmd->pid);