ASoC: Intel: sst: Replace sprintf() with sysfs_emit()

For sysfs outputs, it's safer to use a new helper, sysfs_emit(),
instead of the raw sprintf() & co. This patch replaces those usages
straightforwardly with a new helper, sysfs_emit().

Signed-off-by: Takashi Iwai <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/intel/atom/sst/sst.c

···
 
 	if (ctx->fw_version.type == 0 && ctx->fw_version.major == 0 &&
 	    ctx->fw_version.minor == 0 && ctx->fw_version.build == 0)
-		return sprintf(buf, "FW not yet loaded\n");
+		return sysfs_emit(buf, "FW not yet loaded\n");
 	else
-		return sprintf(buf, "v%02x.%02x.%02x.%02x\n",
-			       ctx->fw_version.type, ctx->fw_version.major,
-			       ctx->fw_version.minor, ctx->fw_version.build);
+		return sysfs_emit(buf, "v%02x.%02x.%02x.%02x\n",
+				  ctx->fw_version.type, ctx->fw_version.major,
+				  ctx->fw_version.minor, ctx->fw_version.build);
 
 }