libudev: device - allocate envp array only once

[elogind.git] / udev / lib / libudev-device.c

diff --git a/udev/lib/libudev-device.c b/udev/lib/libudev-device.c
index bad6e94de58f462a0e6fac888442f3e2b68eca69..11a6037d1b823006fd117568ff50037a846cd530 100644 (file)
--- a/udev/lib/libudev-device.c
+++ b/udev/lib/libudev-device.c
@@ -1025,8 +1025,8 @@ static int update_envp_monitor_buf(struct udev_device *udev_device)
                return -ENOMEM;
 
        /* envp array, strings will point into monitor buffer */
-       free(udev_device->envp);
-       udev_device->envp = malloc(sizeof(char *) * ENVP_SIZE);
+       if (udev_device->envp == NULL)
+               udev_device->envp = malloc(sizeof(char *) * ENVP_SIZE);
        if (udev_device->envp == NULL)
                return -ENOMEM;