MLK-10048-2: ASoC: fsl_asrc: change the return value

Merge from c086d0151ee3e131b52bef96c5096d1ee603c852

Return value -ERESTARTSYS is not visible for user space according
to include/linux/errno.h. So use -EBUSY replace it.

Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
(cherry picked from commit 69d529646a610d8d1360bd116ceec1341aef4211)

sound/soc/fsl/fsl_asrc_m2m.c

@@ -323,7 +323,7 @@ int fsl_asrc_process_buffer_pre(struct completion *complete,
 		return -ETIME;
 	} else if (signal_pending(current)) {
 		pr_err("%sput task forcibly aborted\n", DIR_STR(dir));
-		return -ERESTARTSYS;
+		return -EBUSY;
 	}
 
 	init_completion(complete);