firmware: qemu_fw_cfg.c: potential unintialized variable
It acpi_acquire_global_lock() return AE_NOT_CONFIGURED then "glk" isn't
initialized, which, if you got very unlucky, could cause a bug.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c
index 815c4a5..1b95475 100644
--- a/drivers/firmware/qemu_fw_cfg.c
+++ b/drivers/firmware/qemu_fw_cfg.c
@@ -77,7 +77,7 @@
static inline void fw_cfg_read_blob(u16 key,
void *buf, loff_t pos, size_t count)
{
- u32 glk;
+ u32 glk = -1U;
acpi_status status;
/* If we have ACPI, ensure mutual exclusion against any potential