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authorYu Watanabe <watanabe.yu+github@gmail.com>2024-04-03 22:45:11 +0200
committerLuca Boccassi <luca.boccassi@gmail.com>2024-04-04 22:29:57 +0200
commit9990552f9a26cfb07ef3edaad846543bdd013b10 (patch)
tree37aaaa828bf86d06bfe759661819e8a6bba2f8a8 /src/backlight/backlight.c
parentudev: do not update sysattr and sysctl value on testing (diff)
downloadsystemd-9990552f9a26cfb07ef3edaad846543bdd013b10.tar.xz
systemd-9990552f9a26cfb07ef3edaad846543bdd013b10.zip
backlight: fix detection of multiple graphic cards
Follow-up for e0504dd011189d97a1ea813aabfe1e696742bcf5. Hopefully, devices in PCI subsystem have some properties, thus have their udev database file. But, that may not be true. Here, we only read sysattrs of enumerated devices, hence it is not necessary to check if the device is initialized or not.
Diffstat (limited to 'src/backlight/backlight.c')
-rw-r--r--src/backlight/backlight.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/backlight/backlight.c b/src/backlight/backlight.c
index 6126405994..2de6c2008a 100644
--- a/src/backlight/backlight.c
+++ b/src/backlight/backlight.c
@@ -55,6 +55,10 @@ static int has_multiple_graphics_cards(void) {
if (r < 0)
return r;
+ r = sd_device_enumerator_allow_uninitialized(e);
+ if (r < 0)
+ return r;
+
r = sd_device_enumerator_add_match_subsystem(e, "pci", /* match = */ true);
if (r < 0)
return r;