[PATCH] drivers: staging: davinci_vpfe: use resource_size()

[Silviu-Mihai Popescu]

This uses the resource_size() function instead of explicit computation.

Signed-off-by: Silviu-Mihai Popescu <silviupopescu1...@gmail.com>
---
 drivers/staging/media/davinci_vpfe/dm365_ipipe.c   |    3 ++-
 drivers/staging/media/davinci_vpfe/dm365_isif.c    |    6 ++++--
 drivers/staging/media/davinci_vpfe/dm365_resizer.c |    4 +++-
 3 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipe.c 
b/drivers/staging/media/davinci_vpfe/dm365_ipipe.c
index 9285353..de3f202 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_ipipe.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_ipipe.c
@@ -27,6 +27,7 @@
  */
 
 #include <linux/slab.h>
+#include <linux/ioport.h>
 
 #include "dm365_ipipe.h"
 #include "dm365_ipipe_hw.h"
@@ -1859,5 +1860,5 @@ void vpfe_ipipe_cleanup(struct vpfe_ipipe_device *ipipe,
        iounmap(ipipe->isp5_base_addr);
        res = platform_get_resource(pdev, IORESOURCE_MEM, 4);
        if (res)
-               release_mem_region(res->start, res->end - res->start + 1);
+               release_mem_region(res->start, resource_size(res));
 }
diff --git a/drivers/staging/media/davinci_vpfe/dm365_isif.c 
b/drivers/staging/media/davinci_vpfe/dm365_isif.c
index ebeea72..cd263d5 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_isif.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_isif.c
@@ -19,6 +19,8 @@
  *      Prabhakar Lad <prabhakar....@ti.com>
  */
 
+#include <linux/ioport.h>
+
 #include "dm365_isif.h"
 #include "vpfe_mc_capture.h"
 
@@ -1953,7 +1955,7 @@ static void isif_remove(struct vpfe_isif_device *isif,
                res = platform_get_resource(pdev, IORESOURCE_MEM, i);
                if (res)
                        release_mem_region(res->start,
-                                          res->end - res->start + 1);
+                                          resource_size(res));
                i++;
        }
 }
@@ -2003,7 +2005,7 @@ int vpfe_isif_init(struct vpfe_isif_device *isif, struct 
platform_device *pdev)
                        status = -ENOENT;
                        goto fail_nobase_res;
                }
-               res_len = res->end - res->start + 1;
+               res_len = resource_size(res);
                res = request_mem_region(res->start, res_len, res->name);
                if (!res) {
                        status = -EBUSY;
diff --git a/drivers/staging/media/davinci_vpfe/dm365_resizer.c 
b/drivers/staging/media/davinci_vpfe/dm365_resizer.c
index 9cb0262..c351ea1 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_resizer.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_resizer.c
@@ -24,6 +24,8 @@
  * same input image, but can have different output resolution.
  */
 
+#include <linux/ioport.h>
+
 #include "dm365_ipipe_hw.h"
 #include "dm365_resizer.h"
 
@@ -1995,5 +1997,5 @@ vpfe_resizer_cleanup(struct vpfe_resizer_device *vpfe_rsz,
        res = platform_get_resource(pdev, IORESOURCE_MEM, 5);
        if (res)
                release_mem_region(res->start,
-                                       res->end - res->start + 1);
+                                  resource_size(res));
 }
-- 
1.7.9.5

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