PNP: fix broken pnp lowercasing for acpi module aliases

Based on a patch from Brian, who identified the issue.

Signed-off-by: Bryan Kadzban <bryan@kadzban.is-a-geek.net>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 15 insertions, 2 deletions

diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index d4dc222a74f3..491b8b1b6abf 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -366,11 +366,17 @@ static void do_pnp_device_entry(void *symval, unsigned long size,
 
         for (i = 0; i < count; i++) {
                 const char *id = (char *)devs[i].id;
+                char acpi_id[sizeof(devs[0].id)];
+                int j;
 
                 buf_printf(&mod->dev_table_buf,
                            "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
+
+                /* fix broken pnp bus lowercasing */
+                for (j = 0; j < sizeof(acpi_id); j++)
+                        acpi_id[j] = toupper(id[j]);
                 buf_printf(&mod->dev_table_buf,
-                           "MODULE_ALIAS(\"acpi*:%s:*\");\n", id);
+                           "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
         }
 }
 
@@ -416,10 +422,17 @@ static void do_pnp_card_entries(void *symval, unsigned long size,
 
                         /* add an individual alias for every device entry */
                         if (!dup) {
+                                char acpi_id[sizeof(card->devs[0].id)];
+                                int k;
+
                                 buf_printf(&mod->dev_table_buf,
                                            "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
+
+                                /* fix broken pnp bus lowercasing */
+                                for (k = 0; k < sizeof(acpi_id); k++)
+                                        acpi_id[k] = toupper(id[k]);
                                 buf_printf(&mod->dev_table_buf,
-                                           "MODULE_ALIAS(\"acpi*:%s:*\");\n", id);
+                                           "MODULE_ALIAS(\"acpi*:%s:*\");\n", acpi_id);
                         }
                 }
         }