[PATCH] acpi: Remove erroneous MAP_FIXED

[Damien Zammit]

Reading the man page for mmap, MAP_FIXED needs to be removed,
because we do not want the mapping to be placed at 0.

---
 acpi/acpi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/acpi/acpi.c b/acpi/acpi.c
index 63066aaf..395bf56f 100644
--- a/acpi/acpi.c
+++ b/acpi/acpi.c
@@ -43,7 +43,7 @@ mmap_phys_acpi_header(uintptr_t base_addr, struct acpi_header 
**ptr_to_header,

   /* Map the ACPI table at the nearest page (rounded down) */
   *virt_addr = 0;
-  *virt_addr = mmap(NULL, ESCD_SIZE, PROT_READ, MAP_SHARED | MAP_FIXED,
+  *virt_addr = mmap(NULL, ESCD_SIZE, PROT_READ, MAP_SHARED,
                     fd, (off_t) pa_acpi);

   if (*virt_addr == MAP_FAILED)
@@ -73,7 +73,7 @@ acpi_get_num_tables(size_t *num_tables)
     return EPERM;

   virt_addr = mmap(NULL, ESCD_SIZE, PROT_READ,
-                   MAP_SHARED | MAP_FIXED, fd_mem, ESCD);
+                   MAP_SHARED, fd_mem, ESCD);
   if (virt_addr == MAP_FAILED)
     return errno;

@@ -182,7 +182,7 @@ acpi_get_tables(struct acpi_table **tables)
   if ((fd_mem = open("/dev/mem", O_RDWR)) < 0)
     return EPERM;

-  virt_addr = mmap(NULL, ESCD_SIZE, PROT_READ, MAP_SHARED | MAP_FIXED,
+  virt_addr = mmap(NULL, ESCD_SIZE, PROT_READ, MAP_SHARED,
                    fd_mem, (off_t) phys_addr);

   if (virt_addr == MAP_FAILED)
--
2.34.1