ash: make struct forkshell a local variable in evalbackcmd

There's no reason for the forkshell structure to be passed
between expbackq and evalbackcmd in the backcmd structure.
It can be a local variable, as in the other similar cases.

1 files changed, 7 insertions, 7 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 35438a887..208fce538 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -6732,7 +6732,6 @@ struct backcmd {                /* result of evalbackcmd */
         int fd;                 /* file descriptor to read from */
         int nleft;              /* number of chars in buffer */
         char *buf;              /* buffer */
-        IF_PLATFORM_MINGW32(struct forkshell fs);
         struct job *jp;         /* job structure for command */
 };
 
@@ -6760,11 +6759,11 @@ evalbackcmd(union node *n, struct backcmd *result)
 {
         int pip[2];
         struct job *jp;
+        IF_PLATFORM_MINGW32(struct forkshell fs);
 
         result->fd = -1;
         result->buf = NULL;
         result->nleft = 0;
-        IF_PLATFORM_MINGW32(memset(&result->fs, 0, sizeof(result->fs)));
         result->jp = NULL;
         if (n == NULL) {
                 goto out;
@@ -6774,11 +6773,12 @@ evalbackcmd(union node *n, struct backcmd *result)
                 ash_msg_and_raise_perror("can't create pipe");
         jp = makejob(/*n,*/ 1);
 #if ENABLE_PLATFORM_MINGW32
-        result->fs.fpid = FS_EVALBACKCMD;
-        result->fs.n = n;
-        result->fs.fd[0] = pip[0];
-        result->fs.fd[1] = pip[1];
-        if (spawn_forkshell(jp, &result->fs, FORK_NOJOB) < 0)
+        memset(&fs, 0, sizeof(fs));
+        fs.fpid = FS_EVALBACKCMD;
+        fs.n = n;
+        fs.fd[0] = pip[0];
+        fs.fd[1] = pip[1];
+        if (spawn_forkshell(jp, &fs, FORK_NOJOB) < 0)
                 ash_msg_and_raise_error("unable to spawn shell");
 #else
         if (forkshell(jp, n, FORK_NOJOB) == 0) {