git: eb86c6c5b462 - main - cam: Check if cam_simq_alloc fails for the xpt bus during module init

The branch main has been updated by jhb:

URL: https://cgit.FreeBSD.org/src/commit/?id=eb86c6c5b462c996e44c45ba496937b75ef22da3

commit eb86c6c5b462c996e44c45ba496937b75ef22da3
Author:     John Baldwin <jhb@FreeBSD.org>
AuthorDate: 2024-02-09 19:53:43 +0000
Commit:     John Baldwin <jhb@FreeBSD.org>
CommitDate: 2024-02-09 19:53:43 +0000

    cam: Check if cam_simq_alloc fails for the xpt bus during module init
    
    This is very unlikely to fail (and if it does, CAM isn't going to work
    regardless), but fail with an error rather than a gauranteed panic via
    NULL pointer dereference.
    
    PR:             276770
    Reported by:    Qiushi <w290680224@gmail.com>
---
 sys/cam/cam_xpt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/cam/cam_xpt.c b/sys/cam/cam_xpt.c
index 2acb106b087c..68aa6faae9a3 100644
--- a/sys/cam/cam_xpt.c
+++ b/sys/cam/cam_xpt.c
@@ -908,6 +908,8 @@ xpt_init(void *dummy)
 	 * perform other XPT functions.
 	 */
 	devq = cam_simq_alloc(16);
+	if (devq == NULL)
+		return (ENOMEM);
 	xpt_sim = cam_sim_alloc(xptaction,
 				xptpoll,
 				"xpt",