diff options
Diffstat (limited to 'drivers/char/mem.c')
| -rw-r--r-- | drivers/char/mem.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 524b707894ef..4c58333b4257 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -84,9 +84,12 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size) } #endif -void __weak unxlate_dev_mem_ptr(unsigned long phys, void *addr) +#ifndef unxlate_dev_mem_ptr +#define unxlate_dev_mem_ptr unxlate_dev_mem_ptr +void __weak unxlate_dev_mem_ptr(phys_addr_t phys, void *addr) { } +#endif /* * This funcion reads the *physical* memory. The f_pos points directly to the @@ -97,7 +100,7 @@ static ssize_t read_mem(struct file *file, char __user *buf, { phys_addr_t p = *ppos; ssize_t read, sz; - char *ptr; + void *ptr; if (p != *ppos) return 0; @@ -400,7 +403,7 @@ static ssize_t read_kmem(struct file *file, char __user *buf, * uncached, then it must also be accessed uncached * by the kernel or data corruption may occur */ - kbuf = xlate_dev_kmem_ptr((char *)p); + kbuf = xlate_dev_kmem_ptr((void *)p); if (copy_to_user(buf, kbuf, sz)) return -EFAULT; @@ -461,7 +464,7 @@ static ssize_t do_write_kmem(unsigned long p, const char __user *buf, #endif while (count > 0) { - char *ptr; + void *ptr; sz = size_inside_page(p, count); @@ -470,7 +473,7 @@ static ssize_t do_write_kmem(unsigned long p, const char __user *buf, * it must also be accessed uncached by the kernel or data * corruption may occur. */ - ptr = xlate_dev_kmem_ptr((char *)p); + ptr = xlate_dev_kmem_ptr((void *)p); copied = copy_from_user(ptr, buf, sz); if (copied) { |