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authorAl Viro <viro@zeniv.linux.org.uk>2013-03-31 23:41:41 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2013-04-09 22:13:32 +0400
commit8510e30b46cd5467b2f930bef68a276dbc2c7d7c (patch)
treef084d92b35877b99b45c0448090e5df54d51240a
parentee21ed0afc2f47007fbd8b22928ecb17316e13e2 (diff)
downloadlinux-8510e30b46cd5467b2f930bef68a276dbc2c7d7c.tar.xz
last_radio_log: switch to proc_create()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--arch/arm/mach-msm/last_radio_log.c20
1 files changed, 4 insertions, 16 deletions
diff --git a/arch/arm/mach-msm/last_radio_log.c b/arch/arm/mach-msm/last_radio_log.c
index 1e243f46a969..7777767ee89a 100644
--- a/arch/arm/mach-msm/last_radio_log.c
+++ b/arch/arm/mach-msm/last_radio_log.c
@@ -31,20 +31,8 @@ extern void *smem_item(unsigned id, unsigned *size);
static ssize_t last_radio_log_read(struct file *file, char __user *buf,
size_t len, loff_t *offset)
{
- loff_t pos = *offset;
- ssize_t count;
-
- if (pos >= radio_log_size)
- return 0;
-
- count = min(len, (size_t)(radio_log_size - pos));
- if (copy_to_user(buf, radio_log_base + pos, count)) {
- pr_err("%s: copy to user failed\n", __func__);
- return -EFAULT;
- }
-
- *offset += count;
- return count;
+ return simple_read_from_buffer(buf, len, offset,
+ radio_log_base, radio_log_size);
}
static struct file_operations last_radio_log_fops = {
@@ -67,7 +55,8 @@ void msm_init_last_radio_log(struct module *owner)
return;
}
- entry = create_proc_entry("last_radio_log", S_IFREG | S_IRUGO, NULL);
+ entry = proc_create("last_radio_log", S_IRUGO, NULL,
+ &last_radio_log_fops);
if (!entry) {
pr_err("%s: could not create proc entry for radio log\n",
__func__);
@@ -77,7 +66,6 @@ void msm_init_last_radio_log(struct module *owner)
pr_err("%s: last radio log is %d bytes long\n", __func__,
radio_log_size);
last_radio_log_fops.owner = owner;
- entry->proc_fops = &last_radio_log_fops;
entry->size = radio_log_size;
}
EXPORT_SYMBOL(msm_init_last_radio_log);