crypto: talitos - talitos_ptr renamed ptr for more lisibility

Linux CodyingStyle recommends to use short variables for local
variables. ptr is just good enough for those 3 lines functions.
It helps keep single lines shorter than 80 characters.
Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/talitos.c

@@ -55,37 +55,37 @@
 
 #include "talitos.h"
 
-static void to_talitos_ptr(struct talitos_ptr *talitos_ptr, dma_addr_t dma_addr)
+static void to_talitos_ptr(struct talitos_ptr *ptr, dma_addr_t dma_addr)
 {
-	talitos_ptr->ptr = cpu_to_be32(lower_32_bits(dma_addr));
-	talitos_ptr->eptr = upper_32_bits(dma_addr);
+	ptr->ptr = cpu_to_be32(lower_32_bits(dma_addr));
+	ptr->eptr = upper_32_bits(dma_addr);
 }
 
 /*
  * map virtual single (contiguous) pointer to h/w descriptor pointer
  */
 static void map_single_talitos_ptr(struct device *dev,
-				   struct talitos_ptr *talitos_ptr,
+				   struct talitos_ptr *ptr,
 				   unsigned short len, void *data,
 				   unsigned char extent,
 				   enum dma_data_direction dir)
 {
 	dma_addr_t dma_addr = dma_map_single(dev, data, len, dir);
 
-	talitos_ptr->len = cpu_to_be16(len);
-	to_talitos_ptr(talitos_ptr, dma_addr);
-	talitos_ptr->j_extent = extent;
+	ptr->len = cpu_to_be16(len);
+	to_talitos_ptr(ptr, dma_addr);
+	ptr->j_extent = extent;
 }
 
 /*
  * unmap bus single (contiguous) h/w descriptor pointer
  */
 static void unmap_single_talitos_ptr(struct device *dev,
-				     struct talitos_ptr *talitos_ptr,
+				     struct talitos_ptr *ptr,
 				     enum dma_data_direction dir)
 {
-	dma_unmap_single(dev, be32_to_cpu(talitos_ptr->ptr),
-			 be16_to_cpu(talitos_ptr->len), dir);
+	dma_unmap_single(dev, be32_to_cpu(ptr->ptr),
+			 be16_to_cpu(ptr->len), dir);
 }
 
 static int reset_channel(struct device *dev, int ch)