On Wed, Nov 30, 2016 at 01:45:32PM +0100, Marc Hartmayer wrote:
The comment was actually wrong as
https://www.freedesktop.org/software/systemd/man/udev_new.html
mentions that on failure NULL is returned.

Signed-off-by: Marc Hartmayer <mhart...@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bw...@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiu...@linux.vnet.ibm.com>
---
src/node_device/node_device_udev.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/src/node_device/node_device_udev.c 
b/src/node_device/node_device_udev.c
index 4b81312..4b0a875 100644
--- a/src/node_device/node_device_udev.c
+++ b/src/node_device/node_device_udev.c
@@ -1491,13 +1491,11 @@ static int nodeStateInitialize(bool privileged,
    if (udevPCITranslateInit(privileged) < 0)
        goto cleanup;

-    /*
-     * 
http://www.kernel.org/pub/linux/utils/kernel/hotplug/libudev/libudev-udev.html#udev-new
-     *
-     * indicates no return value other than success, so we don't check
-     * its return value.
-     */
    udev = udev_new();
+    if (!udev) {
+        virReportOOMError();
+        goto cleanup;
+    }

Is that true for other udevs and not just systemd-udev?  Does it really
mean just an OOM error?  Couldn't we add a proper error message?

#if HAVE_UDEV_LOGGING
    /* cast to get rid of missing-format-attribute warning */
    udev_set_log_fn(udev, (udevLogFunctionPtr) udevLogFunction);
--
2.5.5

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