dell-laptop: move dell_smi_error() to dell-smbios

[platform/kernel/linux-rpi.git] / drivers / platform / x86 / dell-smbios.c

diff --git a/drivers/platform/x86/dell-smbios.c b/drivers/platform/x86/dell-smbios.c
index 2a4992a..942572f 100644 (file)
--- a/drivers/platform/x86/dell-smbios.c
+++ b/drivers/platform/x86/dell-smbios.c
@@ -16,6 +16,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/dmi.h>
+#include <linux/err.h>
 #include <linux/gfp.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
@@ -39,6 +40,21 @@ static int da_command_code;
 static int da_num_tokens;
 static struct calling_interface_token *da_tokens;
 
+int dell_smi_error(int value)
+{
+       switch (value) {
+       case 0: /* Completed successfully */
+               return 0;
+       case -1: /* Completed with error */
+               return -EIO;
+       case -2: /* Function not supported */
+               return -ENXIO;
+       default: /* Unknown error */
+               return -EINVAL;
+       }
+}
+EXPORT_SYMBOL_GPL(dell_smi_error);
+
 struct calling_interface_buffer *dell_smbios_get_buffer(void)
 {
        mutex_lock(&buffer_mutex);