tools/virtiofsd/fuse_opt.c: Replaced a malloc with GLib's g_try_malloc

Replaced a malloc() call and its respective free() with
GLib's g_try_malloc() and g_free() calls.

Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Message-Id: <20210314032324.45142-8-ma.mandourr@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

tools/virtiofsd/fuse_opt.c

@@ -272,7 +272,7 @@ static int process_opt_sep_arg(struct fuse_opt_context *ctx,
     }
 
     param = ctx->argv[ctx->argctr];
-    newarg = malloc(sep + strlen(param) + 1);
+    newarg = g_try_malloc(sep + strlen(param) + 1);
     if (!newarg) {
         return alloc_failed();
     }
@@ -280,7 +280,7 @@ static int process_opt_sep_arg(struct fuse_opt_context *ctx,
     memcpy(newarg, arg, sep);
     strcpy(newarg + sep, param);
     res = process_opt(ctx, opt, sep, newarg, iso);
-    free(newarg);
+    g_free(newarg);
 
     return res;
 }