Fix the following coccicheck warning:
drivers/gpu/drm/i915//i915_sysfs.c:266:8-16:
WARNING: use scnprintf or sprintf
drivers/gpu/drm/i915//i915_sysfs.c:285:8-16:
WARNING: use scnprintf or sprintf
drivers/gpu/drm/i915//i915_sysfs.c:276:8-16:
WARNING: use scnprintf or sprintf
drivers/gpu/drm/i915//i915_sysfs.c:335:8-16:
WARNING: use scnprintf or sprintf
drivers/gpu/drm/i915//i915_sysfs.c:390:8-16:
WARNING: use scnprintf or sprintf
drivers/gpu/drm/i915//i915_sysfs.c:465:8-16:
WARNING: use scnprintf or sprintf
drivers/gpu/drm/i915//i915_sysfs.c:107:8-16:
WARNING: use scnprintf or sprintf
drivers/gpu/drm/i915//i915_sysfs.c:75:8-16:
WARNING: use scnprintf or sprintf
drivers/gpu/drm/i915//i915_sysfs.c:83:8-16:
WARNING: use scnprintf or sprintf
drivers/gpu/drm/i915//i915_sysfs.c:91:8-16:
WARNING: use scnprintf or sprintf
drivers/gpu/drm/i915//i915_sysfs.c:99:8-16:
WARNING: use scnprintf or sprintf
drivers/gpu/drm/i915//i915_sysfs.c:326:8-16:
WARNING: use scnprintf or sprintf

./drivers/scsi/fcoe/fcoe_sysfs.c:376:8-16: WARNING: use scnprintf or 
sprintf
./drivers/scsi/fcoe/fcoe_sysfs.c:268:8-16: WARNING: use scnprintf or 
sprintf
./drivers/scsi/fcoe/fcoe_sysfs.c:253:8-16: WARNING: use scnprintf or 
sprintf

Signed-off-by: ztt <1549089851@qq.com>
---
  drivers/scsi/fcoe/fcoe_sysfs.c | 6 +++---
  1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c 
b/drivers/scsi/fcoe/fcoe_sysfs.c
index e17957f8085c..434ef662cfd4 100644
--- a/drivers/scsi/fcoe/fcoe_sysfs.c
+++ b/drivers/scsi/fcoe/fcoe_sysfs.c
@@ -250,7 +250,7 @@ static ssize_t show_fcf_state(struct device *dev,
      name = get_fcoe_fcf_state_name(fcf->state);
      if (!name)
          return -EINVAL;
-    return snprintf(buf, FCOE_FCF_STATE_MAX_NAMELEN, "%s\n", name);
+    return scnprintf(buf, FCOE_FCF_STATE_MAX_NAMELEN, "%s\n", name);
  }
  static FCOE_DEVICE_ATTR(fcf, state, S_IRUGO, show_fcf_state, NULL);

@@ -265,7 +265,7 @@ static ssize_t show_ctlr_mode(struct device *dev,
      name = get_fcoe_ctlr_mode_name(ctlr->mode);
      if (!name)
          return -EINVAL;
-    return snprintf(buf, FCOE_MAX_MODENAME_LEN,
+    return scnprintf(buf, FCOE_MAX_MODENAME_LEN,
              "%s\n", name);
  }

@@ -373,7 +373,7 @@ static ssize_t show_ctlr_enabled_state(struct device 
*dev,
      name = get_fcoe_ctlr_enabled_state_name(ctlr->enabled);
      if (!name)
          return -EINVAL;
-    return snprintf(buf, FCOE_CTLR_ENABLED_MAX_NAMELEN,
+    return scnprintf(buf, FCOE_CTLR_ENABLED_MAX_NAMELEN,
              "%s\n", name);
  }