OMAP1: McBSP: fix build break for non-multi-OMAP1 configs

Commit 3cf32bba8ca0e0052ca41d74d455a5805b7fea85 ("OMAP: McBSP: Convert
McBSP to platform device model") breaks compilation with non-multi-OMAP1
configs:

  CC      arch/arm/mach-omap1/mcbsp.o
arch/arm/mach-omap1/mcbsp.c: In function 'omap1_mcbsp_init':
arch/arm/mach-omap1/mcbsp.c:384: warning: dereferencing 'void *' pointer
arch/arm/mach-omap1/mcbsp.c:387: error: invalid use of void expression
arch/arm/mach-omap1/mcbsp.c:390: warning: dereferencing 'void *' pointer
arch/arm/mach-omap1/mcbsp.c:393: error: invalid use of void expression

Fix by avoiding NULL dereferences.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Acked-by: Jarkko Nikula <jhnikula@gmail.com>
[tony@atomide.com: updated description not to remove unnecessary branch name]
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 12 insertions, 6 deletions

diff --git a/arch/arm/mach-omap1/mcbsp.c b/arch/arm/mach-omap1/mcbsp.c
index e68f6c012fde..d9af9811dedd 100644
--- a/arch/arm/mach-omap1/mcbsp.c
+++ b/arch/arm/mach-omap1/mcbsp.c
@@ -136,6 +136,8 @@ struct resource omap7xx_mcbsp_res[][6] = {
         },
 };
 
+#define omap7xx_mcbsp_res_0             omap7xx_mcbsp_res[0]
+
 static struct omap_mcbsp_platform_data omap7xx_mcbsp_pdata[] = {
         {
                 .ops            = &omap1_mcbsp_ops,
@@ -147,7 +149,7 @@ static struct omap_mcbsp_platform_data omap7xx_mcbsp_pdata[] = {
 #define OMAP7XX_MCBSP_RES_SZ            ARRAY_SIZE(omap7xx_mcbsp_res[1])
 #define OMAP7XX_MCBSP_COUNT             ARRAY_SIZE(omap7xx_mcbsp_res)
 #else
-#define omap7xx_mcbsp_res               NULL
+#define omap7xx_mcbsp_res_0             NULL
 #define omap7xx_mcbsp_pdata             NULL
 #define OMAP7XX_MCBSP_RES_SZ            0
 #define OMAP7XX_MCBSP_COUNT             0
@@ -238,6 +240,8 @@ struct resource omap15xx_mcbsp_res[][6] = {
         },
 };
 
+#define omap15xx_mcbsp_res_0            omap15xx_mcbsp_res[0]
+
 static struct omap_mcbsp_platform_data omap15xx_mcbsp_pdata[] = {
         {
                 .ops            = &omap1_mcbsp_ops,
@@ -252,7 +256,7 @@ static struct omap_mcbsp_platform_data omap15xx_mcbsp_pdata[] = {
 #define OMAP15XX_MCBSP_RES_SZ           ARRAY_SIZE(omap15xx_mcbsp_res[1])
 #define OMAP15XX_MCBSP_COUNT            ARRAY_SIZE(omap15xx_mcbsp_res)
 #else
-#define omap15xx_mcbsp_res              NULL
+#define omap15xx_mcbsp_res_0            NULL
 #define omap15xx_mcbsp_pdata            NULL
 #define OMAP15XX_MCBSP_RES_SZ           0
 #define OMAP15XX_MCBSP_COUNT            0
@@ -343,6 +347,8 @@ struct resource omap16xx_mcbsp_res[][6] = {
         },
 };
 
+#define omap16xx_mcbsp_res_0            omap16xx_mcbsp_res[0]
+
 static struct omap_mcbsp_platform_data omap16xx_mcbsp_pdata[] = {
         {
                 .ops            = &omap1_mcbsp_ops,
@@ -357,7 +363,7 @@ static struct omap_mcbsp_platform_data omap16xx_mcbsp_pdata[] = {
 #define OMAP16XX_MCBSP_RES_SZ           ARRAY_SIZE(omap16xx_mcbsp_res[1])
 #define OMAP16XX_MCBSP_COUNT            ARRAY_SIZE(omap16xx_mcbsp_res)
 #else
-#define omap16xx_mcbsp_res              NULL
+#define omap16xx_mcbsp_res_0            NULL
 #define omap16xx_mcbsp_pdata            NULL
 #define OMAP16XX_MCBSP_RES_SZ           0
 #define OMAP16XX_MCBSP_COUNT            0
@@ -381,19 +387,19 @@ static int __init omap1_mcbsp_init(void)
                 return -ENOMEM;
 
         if (cpu_is_omap7xx())
-                omap_mcbsp_register_board_cfg(omap7xx_mcbsp_res[0],
+                omap_mcbsp_register_board_cfg(omap7xx_mcbsp_res_0,
                                         OMAP7XX_MCBSP_RES_SZ,
                                         omap7xx_mcbsp_pdata,
                                         OMAP7XX_MCBSP_COUNT);
 
         if (cpu_is_omap15xx())
-                omap_mcbsp_register_board_cfg(omap15xx_mcbsp_res[0],
+                omap_mcbsp_register_board_cfg(omap15xx_mcbsp_res_0,
                                         OMAP15XX_MCBSP_RES_SZ,
                                         omap15xx_mcbsp_pdata,
                                         OMAP15XX_MCBSP_COUNT);
 
         if (cpu_is_omap16xx())
-                omap_mcbsp_register_board_cfg(omap16xx_mcbsp_res[0],
+                omap_mcbsp_register_board_cfg(omap16xx_mcbsp_res_0,
                                         OMAP16XX_MCBSP_RES_SZ,
                                         omap16xx_mcbsp_pdata,
                                         OMAP16XX_MCBSP_COUNT);