The branch main has been updated by jhb:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=108adb2ff52c73a92837452ef3ed641053bd1b6f

commit 108adb2ff52c73a92837452ef3ed641053bd1b6f
Author:     John Baldwin <[email protected]>
AuthorDate: 2022-04-21 17:29:14 +0000
Commit:     John Baldwin <[email protected]>
CommitDate: 2022-04-21 17:29:14 +0000

    arcmsr: Remove never-true NULL check from cdev callbacks.
    
    si_drv1 will always hold a non-NULL pointer.
    
    Reviewed by:    imp
    Differential Revision:  https://reviews.freebsd.org/D35005
---
 sys/dev/arcmsr/arcmsr.c | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/sys/dev/arcmsr/arcmsr.c b/sys/dev/arcmsr/arcmsr.c
index 87147402d091..2a1b0250364f 100644
--- a/sys/dev/arcmsr/arcmsr.c
+++ b/sys/dev/arcmsr/arcmsr.c
@@ -240,11 +240,6 @@ static struct cdevsw arcmsr_cdevsw={
 */
 static int arcmsr_open(struct cdev *dev, int flags, int fmt, struct thread 
*proc)
 {
-       struct AdapterControlBlock *acb = dev->si_drv1;
-
-       if (acb == NULL) {
-               return ENXIO;
-       }
        return (0);
 }
 /*
@@ -253,11 +248,6 @@ static int arcmsr_open(struct cdev *dev, int flags, int 
fmt, struct thread *proc
 */
 static int arcmsr_close(struct cdev *dev, int flags, int fmt, struct thread 
*proc)
 {
-       struct AdapterControlBlock *acb = dev->si_drv1;
-
-       if (acb == NULL) {
-               return ENXIO;
-       }
        return 0;
 }
 /*
@@ -268,9 +258,6 @@ static int arcmsr_ioctl(struct cdev *dev, u_long ioctl_cmd, 
caddr_t arg, int fla
 {
        struct AdapterControlBlock *acb = dev->si_drv1;
 
-       if (acb == NULL) {
-               return ENXIO;
-       }
        return (arcmsr_iop_ioctlcmd(acb, ioctl_cmd, arg));
 }
 /*

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