diff options
| author | Konstantin Belousov <kib@FreeBSD.org> | 2020-02-04 17:08:00 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2020-02-04 17:08:00 +0000 |
| commit | 41a1e96567ba33ec46a0443042062d24ad50b971 (patch) | |
| tree | 93c1a8da12dbb2eaaa89fb34bf3909c70c2b4ec4 /sys/compat/linuxkpi | |
| parent | 818bccc14c0044001461afb552a66501da41bad2 (diff) | |
Notes
Diffstat (limited to 'sys/compat/linuxkpi')
| -rw-r--r-- | sys/compat/linuxkpi/common/src/linux_compat.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/sys/compat/linuxkpi/common/src/linux_compat.c b/sys/compat/linuxkpi/common/src/linux_compat.c index 56c747864534..95dfe9fa1ea4 100644 --- a/sys/compat/linuxkpi/common/src/linux_compat.c +++ b/sys/compat/linuxkpi/common/src/linux_compat.c @@ -1530,7 +1530,9 @@ linux_file_ioctl(struct file *fp, u_long cmd, void *data, struct ucred *cred, struct linux_file *filp; const struct file_operations *fop; struct linux_cdev *ldev; - int error; + struct fiodgname_arg *fgn; + const char *p; + int error, i; error = 0; filp = (struct linux_file *)fp->f_data; @@ -1558,6 +1560,20 @@ linux_file_ioctl(struct file *fp, u_long cmd, void *data, struct ucred *cred, case FIOGETOWN: *(int *)data = fgetown(&filp->f_sigio); break; + case FIODGNAME: + if (filp->f_cdev == NULL || filp->f_cdev->cdev == NULL) { + error = ENXIO; + break; + } + fgn = data; + p = devtoname(filp->f_cdev->cdev); + i = strlen(p) + 1; + if (i > fgn->len) { + error = EINVAL; + break; + } + error = copyout(p, fgn->buf, i); + break; default: error = linux_file_ioctl_sub(fp, filp, fop, cmd, data, td); break; |