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path: root/drivers/tty/vt/consolemap.c
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Diffstat (limited to 'drivers/tty/vt/consolemap.c')
-rw-r--r--drivers/tty/vt/consolemap.c32
1 files changed, 13 insertions, 19 deletions
diff --git a/drivers/tty/vt/consolemap.c b/drivers/tty/vt/consolemap.c
index 8eb9d745a868..7a11c3f2e875 100644
--- a/drivers/tty/vt/consolemap.c
+++ b/drivers/tty/vt/consolemap.c
@@ -361,10 +361,10 @@ int con_set_trans_old(unsigned char __user * arg)
inbuf[i] = UNI_DIRECT_BASE | ch;
}
- console_lock();
+ guard(console_lock)();
memcpy(translations[USER_MAP], inbuf, sizeof(inbuf));
update_user_maps();
- console_unlock();
+
return 0;
}
@@ -374,13 +374,11 @@ int con_get_trans_old(unsigned char __user * arg)
unsigned short *p = translations[USER_MAP];
unsigned char outbuf[E_TABSZ];
- console_lock();
- for (i = 0; i < ARRAY_SIZE(outbuf); i++)
- {
- ch = conv_uni_to_pc(vc_cons[fg_console].d, p[i]);
- outbuf[i] = (ch & ~0xff) ? 0 : ch;
- }
- console_unlock();
+ scoped_guard(console_lock)
+ for (i = 0; i < ARRAY_SIZE(outbuf); i++) {
+ ch = conv_uni_to_pc(vc_cons[fg_console].d, p[i]);
+ outbuf[i] = (ch & ~0xff) ? 0 : ch;
+ }
return copy_to_user(arg, outbuf, sizeof(outbuf)) ? -EFAULT : 0;
}
@@ -392,10 +390,10 @@ int con_set_trans_new(ushort __user * arg)
if (copy_from_user(inbuf, arg, sizeof(inbuf)))
return -EFAULT;
- console_lock();
+ guard(console_lock)();
memcpy(translations[USER_MAP], inbuf, sizeof(inbuf));
update_user_maps();
- console_unlock();
+
return 0;
}
@@ -403,9 +401,8 @@ int con_get_trans_new(ushort __user * arg)
{
unsigned short outbuf[E_TABSZ];
- console_lock();
- memcpy(outbuf, translations[USER_MAP], sizeof(outbuf));
- console_unlock();
+ scoped_guard(console_lock)
+ memcpy(outbuf, translations[USER_MAP], sizeof(outbuf));
return copy_to_user(arg, outbuf, sizeof(outbuf)) ? -EFAULT : 0;
}
@@ -571,11 +568,8 @@ static int con_do_clear_unimap(struct vc_data *vc)
int con_clear_unimap(struct vc_data *vc)
{
- int ret;
- console_lock();
- ret = con_do_clear_unimap(vc);
- console_unlock();
- return ret;
+ guard(console_lock)();
+ return con_do_clear_unimap(vc);
}
static struct uni_pagedict *con_unshare_unimap(struct vc_data *vc,