From: Benjamin Block Date: Fri, 5 Dec 2025 15:47:18 +0000 (+0100) Subject: s390/pci: Annotate lock context imbalance in zpci_release_device() X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=af241e6bfc11125e6669dabf0800fce6809dd3cf;p=thirdparty%2Flinux.git s390/pci: Annotate lock context imbalance in zpci_release_device() When checking `arch/s390/pci/pci.c` with `sparse` during build, the following complaint is reported: arch/s390/pci/pci.c: note: in included file (through include/linux/smp.h, include/linux/lockdep.h, include/linux/spinlock.h, include/linux/mmzone.h, include/linux/gfp.h, include/linux/slab.h): ./include/linux/list.h:237:25: warning: context imbalance in 'zpci_release_device' - unexpected unlock But this is expected, as zpci_release_device() is expected to be called with `zpci_list_lock` held, as part of `kref_put_lock()` or similar. Reflect this by annotating the function with the appropriate __releases(). Signed-off-by: Benjamin Block Reviewed-by: Farhan Ali Reviewed-by: Niklas Schnelle Reviewed-by: Gerd Bayer Signed-off-by: Heiko Carstens --- diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index 8fd14d043008..57f3980b98a9 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -961,6 +961,7 @@ void zpci_device_reserved(struct zpci_dev *zdev) } void zpci_release_device(struct kref *kref) + __releases(&zpci_list_lock) { struct zpci_dev *zdev = container_of(kref, struct zpci_dev, kref);