[PATCH 2/3] ALSA: mpu401: Use common error handling code in snd_mpu401_uart_new()

[SF Markus Elfring]

From: Markus Elfring <elfr...@users.sourceforge.net>
Date: Sat, 12 Aug 2017 20:40:17 +0200

Add a jump target so that a bit of exception handling can be better reused
at the end of this function.

Signed-off-by: Markus Elfring <elfr...@users.sourceforge.net>
---
 sound/drivers/mpu401/mpu401_uart.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/sound/drivers/mpu401/mpu401_uart.c 
b/sound/drivers/mpu401/mpu401_uart.c
index cc347386fc2b..e8bdea193eab 100644
--- a/sound/drivers/mpu401/mpu401_uart.c
+++ b/sound/drivers/mpu401/mpu401_uart.c
@@ -545,8 +545,8 @@ int snd_mpu401_uart_new(struct snd_card *card, int device,
                return err;
        mpu = kzalloc(sizeof(*mpu), GFP_KERNEL);
        if (mpu == NULL) {
-               snd_device_free(card, rmidi);
-               return -ENOMEM;
+               err = -ENOMEM;
+               goto free_device;
        }
        rmidi->private_data = mpu;
        rmidi->private_free = snd_mpu401_uart_free;
@@ -562,8 +562,8 @@ int snd_mpu401_uart_new(struct snd_card *card, int device,
                        snd_printk(KERN_ERR "mpu401_uart: "
                                   "unable to grab port 0x%lx size %d\n",
                                   port, res_size);
-                       snd_device_free(card, rmidi);
-                       return -EBUSY;
+                       err = -EBUSY;
+                       goto free_device;
                }
        }
        if (info_flags & MPU401_INFO_MMIO) {
@@ -583,8 +583,8 @@ int snd_mpu401_uart_new(struct snd_card *card, int device,
                                "MPU401 UART", (void *) mpu)) {
                        snd_printk(KERN_ERR "mpu401_uart: "
                                   "unable to grab IRQ %d\n", irq);
-                       snd_device_free(card, rmidi);
-                       return -EBUSY;
+                       err = -EBUSY;
+                       goto free_device;
                }
        }
        if (irq < 0 && !(info_flags & MPU401_INFO_IRQ_HOOK))
@@ -612,6 +612,9 @@ int snd_mpu401_uart_new(struct snd_card *card, int device,
        if (rrawmidi)
                *rrawmidi = rmidi;
        return 0;
+free_device:
+       snd_device_free(card, rmidi);
+       return err;
 }
 
 EXPORT_SYMBOL(snd_mpu401_uart_new);
-- 
2.14.0