[PATCH] Remove exit call from sys_physmap_*

[Niklas Söderlund]

All callers are prepared to handle error if ERROR_PTR is returned.

Signed-off-by: Niklas Söderlund 
---
 physmap.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/physmap.c b/physmap.c
index 5aa9874..adce315 100644
--- a/physmap.c
+++ b/physmap.c
@@ -173,12 +173,11 @@ static void *sys_physmap_rw_uncached(unsigned long phys_addr, size_t len)
    	/* Open the memory device UNCACHED. Important for MMIO. */
    	if (-1 == (fd_mem = open(MEM_DEV, O_RDWR | O_SYNC))) {
    		perror("Critical error: open(" MEM_DEV ")");
-			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;
 }

@@ -192,14 +191,12 @@ static void *sys_physmap_ro_cached(unsigned long phys_addr, size_t len)
    if (-1 == fd_mem_cached) {
    	/* Open the memory device CACHED. */
    	if (-1 == (fd_mem_cached = open(MEM_DEV, O_RDWR))) {
-			msg_perr("Critical error: open(" MEM_DEV "): %s",
-				 strerror(errno));
-			exit(2);
+			msg_perr("Critical error: open(" MEM_DEV "): %s", strerror(errno));
+			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;
 }

@@ -209,7 +206,7 @@ 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