[PATCH 3/3] dma: at_hdmac: Always use atdma_sg->len for at91 sama5d3

[Henry Nestler]

Sometime was used "atdma_sg->len", other cases used "desc->sg[i].len".
Use same coding style for all settings of descriptor length.

Signed-off-by: Henry Nestler <henrynmail-at91 at yahoo.com>
---

--- linux-6.1.38.orig/drivers/dma/at_hdmac.c
+++ linux-6.1.38/drivers/dma/at_hdmac.c
@@ -1017,7 +1017,7 @@
         lli->ctrla = ctrla | xfer_count;
         lli->ctrlb = ctrlb;
 
-        desc->sg[i].len = xfer_count << src_width;
+        atdma_sg->len = xfer_count << src_width;
 
         atdma_lli_chain(desc, i);
     }
@@ -1360,7 +1360,7 @@
                      len >> reg_width;
             lli->ctrlb = ctrlb;
 
-            desc->sg[i].len = len;
+            atdma_sg->len = len;
             total_len += len;
 
             atdma_lli_chain(desc, i);
@@ -1461,7 +1461,7 @@
              FIELD_PREP(ATC_DST_WIDTH, reg_width) |
              FIELD_PREP(ATC_SRC_WIDTH, reg_width) |
              period_len >> reg_width;
-    desc->sg[i].len = period_len;
+    atdma_sg->len = period_len;
 
     return 0;
 }