printk.c (93cd6fa6806cb3455e8231578840afb031606352) printk.c (cbbd26b8b1a6af9c02e2b6523e12bd50cc765059)
1/*
2 * linux/kernel/printk.c
3 *
4 * Copyright (C) 1991, 1992 Linus Torvalds
5 *
6 * Modified to make sys_syslog() more flexible: added commands to
7 * return the last 4k of kernel messages, regardless of whether
8 * they've been read or not. Added option to suppress kernel printk's

--- 734 unchanged lines hidden (view full) ---

743 return ret;
744 }
745
746 buf = kmalloc(len+1, GFP_KERNEL);
747 if (buf == NULL)
748 return -ENOMEM;
749
750 buf[len] = '\0';
1/*
2 * linux/kernel/printk.c
3 *
4 * Copyright (C) 1991, 1992 Linus Torvalds
5 *
6 * Modified to make sys_syslog() more flexible: added commands to
7 * return the last 4k of kernel messages, regardless of whether
8 * they've been read or not. Added option to suppress kernel printk's

--- 734 unchanged lines hidden (view full) ---

743 return ret;
744 }
745
746 buf = kmalloc(len+1, GFP_KERNEL);
747 if (buf == NULL)
748 return -ENOMEM;
749
750 buf[len] = '\0';
751 if (copy_from_iter(buf, len, from) != len) {
751 if (!copy_from_iter_full(buf, len, from)) {
752 kfree(buf);
753 return -EFAULT;
754 }
755
756 /*
757 * Extract and skip the syslog prefix <[0-9]*>. Coming from userspace
758 * the decimal value represents 32bit, the lower 3 bit are the log
759 * level, the rest are the log facility.

--- 2554 unchanged lines hidden --- 		752 kfree(buf);
753 return -EFAULT;
754 }
755
756 /*
757 * Extract and skip the syslog prefix <[0-9]*>. Coming from userspace
758 * the decimal value represents 32bit, the lower 3 bit are the log
759 * level, the rest are the log facility.

--- 2554 unchanged lines hidden ---