[ALSA] sound: rme32.c fix integer as NULL pointer warning

kernel style does assignment outside of if() statements.
sound/pci/rme32.c:1353:71: warning: Using plain integer as NULL pointer

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/sound/pci/rme32.c b/sound/pci/rme32.c
index df184aabce84..e7ef3a1a25a8 100644
--- a/sound/pci/rme32.c
+++ b/sound/pci/rme32.c
@@ -1350,7 +1350,8 @@ static int __devinit snd_rme32_create(struct rme32 * rme32)
                 return err;
         rme32->port = pci_resource_start(rme32->pci, 0);
 
-        if ((rme32->iobase = ioremap_nocache(rme32->port, RME32_IO_SIZE)) == 0) {
+        rme32->iobase = ioremap_nocache(rme32->port, RME32_IO_SIZE);
+        if (!rme32->iobase) {
                 snd_printk(KERN_ERR "unable to remap memory region 0x%lx-0x%lx\n",
                            rme32->port, rme32->port + RME32_IO_SIZE - 1);
                 return -ENOMEM;