sound/oss/dmasound: Remove superfluous "break"

Remove superfluous "break", as there is a "return" before them.
Signed-off-by: zuoqilin <zuoqilin@yulong.com>
Link: https://lore.kernel.org/r/20210524070028.45-1-zuoqilin1@163.comSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/oss/dmasound/dmasound_core.c

@@ -999,11 +999,9 @@ static int sq_ioctl(struct file *file, u_int cmd, u_long arg)
 	case SNDCTL_DSP_RESET:
 		sq_reset();
 		return 0;
-		break ;
 	case SNDCTL_DSP_GETFMTS:
 		fmt = dmasound.mach.hardware_afmts ; /* this is what OSS says.. */
 		return IOCTL_OUT(arg, fmt);
-		break ;
 	case SNDCTL_DSP_GETBLKSIZE:
 		/* this should tell the caller about bytes that the app can
 		   read/write - the app doesn't care about our internal buffers.
@@ -1020,7 +1018,6 @@ static int sq_ioctl(struct file *file, u_int cmd, u_long arg)
 			size = write_sq.user_frag_size ;
 		}
 		return IOCTL_OUT(arg, size);
-		break ;
 	case SNDCTL_DSP_POST:
 		/* all we are going to do is to tell the LL that any
 		   partial frags can be queued for output.
@@ -1044,7 +1041,6 @@ static int sq_ioctl(struct file *file, u_int cmd, u_long arg)
 		if (file->f_mode & shared_resource_owner)
 			shared_resources_initialised = 0 ;
 		return result ;
-		break ;
 	case SOUND_PCM_READ_RATE:
 		return IOCTL_OUT(arg, dmasound.soft.speed);
 	case SNDCTL_DSP_SPEED:
@@ -1123,7 +1119,6 @@ static int sq_ioctl(struct file *file, u_int cmd, u_long arg)
 		   the value is 'random' and that the user _must_ check the actual
 		   frags values using SNDCTL_DSP_GETBLKSIZE or similar */
 		return IOCTL_OUT(arg, data);
-		break ;
 	case SNDCTL_DSP_GETOSPACE:
 		/*
 		*/