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(parent: 59ecab1) | patch
fw_cfg: handle fw_cfg_read_blob() error
authorMarc-André Lureau <marcandre.lureau@redhat.com>
Wed, 28 Feb 2018 15:06:10 +0000 (16:06 +0100)
committerMichael S. Tsirkin <mst@redhat.com>
Tue, 20 Mar 2018 01:17:39 +0000 (03:17 +0200)
commitb1cc4097d15c29725060f86ecec20a1e635a541f
tree40378599986447c14047362ddbc37b71b4a4ed64tree | snapshot
parent59ecab182faf84e76f4a07fee904d41e41f4780ccommit | diff
fw_cfg: handle fw_cfg_read_blob() error

fw_cfg_read_blob() may fail, but does not return error. This may lead
to surprising behaviours, like populating zero file entries (in
register_file() or during read). Return an error if ACPI locking
failed. Also, the following DMA read/write extension will add more
error paths that should be handled appropriately.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
drivers/firmware/qemu_fw_cfg.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git