diff options
Diffstat (limited to 'arch/um/kernel/exitcode.c')
-rw-r--r-- | arch/um/kernel/exitcode.c | 31 |
1 files changed, 17 insertions, 14 deletions
diff --git a/arch/um/kernel/exitcode.c b/arch/um/kernel/exitcode.c index c716b5a6db13..984f80e668ca 100644 --- a/arch/um/kernel/exitcode.c +++ b/arch/um/kernel/exitcode.c | |||
@@ -1,15 +1,17 @@ | |||
1 | /* | 1 | /* |
2 | * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) | 2 | * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
3 | * Licensed under the GPL | 3 | * Licensed under the GPL |
4 | */ | 4 | */ |
5 | 5 | ||
6 | #include "linux/kernel.h" | 6 | #include <linux/ctype.h> |
7 | #include "linux/init.h" | 7 | #include <linux/init.h> |
8 | #include "linux/ctype.h" | 8 | #include <linux/kernel.h> |
9 | #include "linux/proc_fs.h" | 9 | #include <linux/proc_fs.h> |
10 | #include "asm/uaccess.h" | 10 | #include <linux/types.h> |
11 | #include <asm/uaccess.h> | ||
11 | 12 | ||
12 | /* If read and write race, the read will still atomically read a valid | 13 | /* |
14 | * If read and write race, the read will still atomically read a valid | ||
13 | * value. | 15 | * value. |
14 | */ | 16 | */ |
15 | int uml_exitcode = 0; | 17 | int uml_exitcode = 0; |
@@ -19,18 +21,19 @@ static int read_proc_exitcode(char *page, char **start, off_t off, | |||
19 | { | 21 | { |
20 | int len, val; | 22 | int len, val; |
21 | 23 | ||
22 | /* Save uml_exitcode in a local so that we don't need to guarantee | 24 | /* |
25 | * Save uml_exitcode in a local so that we don't need to guarantee | ||
23 | * that sprintf accesses it atomically. | 26 | * that sprintf accesses it atomically. |
24 | */ | 27 | */ |
25 | val = uml_exitcode; | 28 | val = uml_exitcode; |
26 | len = sprintf(page, "%d\n", val); | 29 | len = sprintf(page, "%d\n", val); |
27 | len -= off; | 30 | len -= off; |
28 | if(len <= off+count) | 31 | if (len <= off+count) |
29 | *eof = 1; | 32 | *eof = 1; |
30 | *start = page + off; | 33 | *start = page + off; |
31 | if(len > count) | 34 | if (len > count) |
32 | len = count; | 35 | len = count; |
33 | if(len < 0) | 36 | if (len < 0) |
34 | len = 0; | 37 | len = 0; |
35 | return len; | 38 | return len; |
36 | } | 39 | } |
@@ -41,11 +44,11 @@ static int write_proc_exitcode(struct file *file, const char __user *buffer, | |||
41 | char *end, buf[sizeof("nnnnn\0")]; | 44 | char *end, buf[sizeof("nnnnn\0")]; |
42 | int tmp; | 45 | int tmp; |
43 | 46 | ||
44 | if(copy_from_user(buf, buffer, count)) | 47 | if (copy_from_user(buf, buffer, count)) |
45 | return -EFAULT; | 48 | return -EFAULT; |
46 | 49 | ||
47 | tmp = simple_strtol(buf, &end, 0); | 50 | tmp = simple_strtol(buf, &end, 0); |
48 | if((*end != '\0') && !isspace(*end)) | 51 | if ((*end != '\0') && !isspace(*end)) |
49 | return -EINVAL; | 52 | return -EINVAL; |
50 | 53 | ||
51 | uml_exitcode = tmp; | 54 | uml_exitcode = tmp; |
@@ -57,7 +60,7 @@ static int make_proc_exitcode(void) | |||
57 | struct proc_dir_entry *ent; | 60 | struct proc_dir_entry *ent; |
58 | 61 | ||
59 | ent = create_proc_entry("exitcode", 0600, &proc_root); | 62 | ent = create_proc_entry("exitcode", 0600, &proc_root); |
60 | if(ent == NULL){ | 63 | if (ent == NULL) { |
61 | printk(KERN_WARNING "make_proc_exitcode : Failed to register " | 64 | printk(KERN_WARNING "make_proc_exitcode : Failed to register " |
62 | "/proc/exitcode\n"); | 65 | "/proc/exitcode\n"); |
63 | return 0; | 66 | return 0; |