git: 28977cb9bc15 - main - wmistat: don't restrict reading to the pid that opened the fd.

From: Dag-Erling Smørgrav <des_at_FreeBSD.org>
Date: Tue, 29 Aug 2023 17:23:59 UTC
The branch main has been updated by des:

URL: https://cgit.FreeBSD.org/src/commit/?id=28977cb9bc15a7f1fb7d28e14cd03f8dafd4e155

commit 28977cb9bc15a7f1fb7d28e14cd03f8dafd4e155
Author:     Dag-Erling Smørgrav <des@FreeBSD.org>
AuthorDate: 2023-08-29 17:23:16 +0000
Commit:     Dag-Erling Smørgrav <des@FreeBSD.org>
CommitDate: 2023-08-29 17:23:16 +0000

    wmistat: don't restrict reading to the pid that opened the fd.
    
    PR:             273405
    MFC after:      1 week
    Reviewed by:    emaste
    Differential Revision:  https://reviews.freebsd.org/D41621
---
 sys/dev/acpi_support/acpi_wmi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sys/dev/acpi_support/acpi_wmi.c b/sys/dev/acpi_support/acpi_wmi.c
index 1df7cc60a940..6601db4317cb 100644
--- a/sys/dev/acpi_support/acpi_wmi.c
+++ b/sys/dev/acpi_support/acpi_wmi.c
@@ -976,8 +976,7 @@ acpi_wmi_wmistat_read(struct cdev *dev, struct uio *buf, int flag)
 	sc = dev->si_drv1;
 
 	ACPI_SERIAL_BEGIN(acpi_wmi);
-	if (sc->wmistat_open_pid != buf->uio_td->td_proc->p_pid ||
-			sc->wmistat_bufptr == -1) {
+	if (sc->wmistat_bufptr == -1) {
 		ret = EBADF;
 	}
 	else {