diff options
Diffstat (limited to 'physmap.c')
| -rw-r--r-- | physmap.c | 12 |
1 files changed, 5 insertions, 7 deletions
@@ -165,12 +165,11 @@ static void *sys_physmap_rw_uncached(uintptr_t phys_addr, size_t len) /* Open the memory device UNCACHED. Important for MMIO. */ if (-1 == (fd_mem = open(MEM_DEV, O_RDWR | O_SYNC))) { msg_perr("Critical error: open(" MEM_DEV "): %s\n", strerror(errno)); - exit(2); + return ERROR_PTR; } } - virt_addr = mmap(NULL, len, PROT_WRITE | PROT_READ, MAP_SHARED, - fd_mem, (off_t)phys_addr); + virt_addr = mmap(NULL, len, PROT_WRITE | PROT_READ, MAP_SHARED, fd_mem, (off_t)phys_addr); return MAP_FAILED == virt_addr ? ERROR_PTR : virt_addr; } @@ -185,12 +184,11 @@ static void *sys_physmap_ro_cached(uintptr_t phys_addr, size_t len) /* Open the memory device CACHED. */ if (-1 == (fd_mem_cached = open(MEM_DEV, O_RDWR))) { msg_perr("Critical error: open(" MEM_DEV "): %s\n", strerror(errno)); - exit(2); + return ERROR_PTR; } } - virt_addr = mmap(NULL, len, PROT_READ, MAP_SHARED, - fd_mem_cached, (off_t)phys_addr); + virt_addr = mmap(NULL, len, PROT_READ, MAP_SHARED, fd_mem_cached, (off_t)phys_addr); return MAP_FAILED == virt_addr ? ERROR_PTR : virt_addr; } @@ -200,7 +198,7 @@ void physunmap(void *virt_addr, size_t len) msg_pspew("Not unmapping zero size at %p\n", virt_addr); return; } - + munmap(virt_addr, len); } #endif |