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authorMarc-André Lureau <marcandre.lureau@redhat.com>2018-02-28 16:06:07 +0100
committerMichael S. Tsirkin <mst@redhat.com>2018-03-20 02:17:38 +0100
commitf295c8dba71841f007e2154143109d1517670a08 (patch)
tree86e6993d59f2067799588dcca915c08858d27136 /drivers/firmware
parentfw_cfg: fix sparse warnings with fw_cfg_file (diff)
downloadlinux-f295c8dba71841f007e2154143109d1517670a08.tar.xz
linux-f295c8dba71841f007e2154143109d1517670a08.zip
fw_cfg: fix sparse warning reading FW_CFG_ID
Use a restricted type for reading FW_CFG_ID, fixing sparse warning: drivers/firmware/qemu_fw_cfg.c:540:22: warning: cast to restricted __le32 Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/firmware')
-rw-r--r--drivers/firmware/qemu_fw_cfg.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c
index 7978844f6b37..0eb155fdfb35 100644
--- a/drivers/firmware/qemu_fw_cfg.c
+++ b/drivers/firmware/qemu_fw_cfg.c
@@ -530,6 +530,7 @@ static inline void fw_cfg_kobj_cleanup(struct kobject *kobj)
static int fw_cfg_sysfs_probe(struct platform_device *pdev)
{
int err;
+ __le32 rev;
/* NOTE: If we supported multiple fw_cfg devices, we'd first create
* a subdirectory named after e.g. pdev->id, then hang per-device
@@ -555,8 +556,8 @@ static int fw_cfg_sysfs_probe(struct platform_device *pdev)
goto err_probe;
/* get revision number, add matching top-level attribute */
- fw_cfg_read_blob(FW_CFG_ID, &fw_cfg_rev, 0, sizeof(fw_cfg_rev));
- fw_cfg_rev = le32_to_cpu(fw_cfg_rev);
+ fw_cfg_read_blob(FW_CFG_ID, &rev, 0, sizeof(rev));
+ fw_cfg_rev = le32_to_cpu(rev);
err = sysfs_create_file(fw_cfg_top_ko, &fw_cfg_rev_attr.attr);
if (err)
goto err_rev;