MIRRORS/linux-yocto
1
0
Fork 0
mirror of git://git.yoctoproject.org/linux-yocto.git synced 2025-07-05 13:25:20 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

Check /dev/console using init_stat()

Browse Source 
vfs_lstat() which was used previously would fail with certain
configurations. This was likely due to the involved functions being
marked __init at some point in the past.

Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
This commit is contained in:
Sven Schwermer 2022-11-07 21:25:42 +01:00 committed by Bruce Ashfield
parent 82689c6270
commit ccb5f0a475
1 changed files with 10 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
init/main.c
View File

@ -1578,20 +1578,21 @@ static int __ref kernel_init(void *unused)
/* Open /dev/console, for stdin/stdout/stderr, this should never fail */
void __init console_on_rootfs(void)
{
struct file *file;
#ifndef CONFIG_BLK_DEV_INITRD
/*
* Use /dev/console to infer if the rootfs is setup properly.
* In case of initrd or initramfs /dev/console might be instantiated
* later by /init so don't do this check for CONFIG_BLK_DEV_INITRD
*/
struct kstat console_stat;
if (vfs_lstat((char __user *) "/dev/console", (struct kstat __user *) &console_stat)
|| !S_ISCHR(console_stat.mode)) {
struct kstat stat;
if (init_stat("/dev/console", &stat, 0) || !S_ISCHR(stat.mode)) {
panic("/dev/console is missing or not a character device!\nPlease ensure your rootfs is properly configured\n");
}
#endif
struct file *file = filp_open("/dev/console", O_RDWR, 0);
file = filp_open("/dev/console", O_RDWR, 0);
if (IS_ERR(file)) {
pr_err("Warning: unable to open an initial console.\n");