dma/shdma: move dereference below the NULL check

"param" can be NULL here, so only dereference it after the check.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c
index fb64cf36ba61..eb6b54dbb806 100644
--- a/drivers/dma/shdma.c
+++ b/drivers/dma/shdma.c
@@ -580,7 +580,6 @@ static struct dma_async_tx_descriptor *sh_dmae_prep_slave_sg(
 
         sh_chan = to_sh_chan(chan);
         param = chan->private;
-        slave_addr = param->config->addr;
 
         /* Someone calling slave DMA on a public channel? */
         if (!param || !sg_len) {
@@ -589,6 +588,8 @@ static struct dma_async_tx_descriptor *sh_dmae_prep_slave_sg(
                 return NULL;
         }
 
+        slave_addr = param->config->addr;
+
         /*
          * if (param != NULL), this is a successfully requested slave channel,
          * therefore param->config != NULL too.