Author: kib
Date: Thu Oct  5 18:42:13 2017
New Revision: 324326
URL: https://svnweb.freebsd.org/changeset/base/324326

Log:
  Style.
  
  Reviewed by:  bde
  Sponsored by: The FreeBSD Foundation
  MFC after:    1 week

Modified:
  head/sys/i386/i386/sys_machdep.c

Modified: head/sys/i386/i386/sys_machdep.c
==============================================================================
--- head/sys/i386/i386/sys_machdep.c    Thu Oct  5 18:38:42 2017        
(r324325)
+++ head/sys/i386/i386/sys_machdep.c    Thu Oct  5 18:42:13 2017        
(r324326)
@@ -166,7 +166,7 @@ sysarch(struct thread *td, struct sysarch_args *uap)
                break;
        }
 
-       switch(uap->op) {
+       switch (uap->op) {
        case I386_GET_LDT:
                error = i386_get_ldt(td, &kargs.largs);
                break;
@@ -432,8 +432,7 @@ user_ldt_alloc(struct mdproc *mdp, int len)
 
        mtx_assert(&dt_lock, MA_OWNED);
        mtx_unlock_spin(&dt_lock);
-       new_ldt = malloc(sizeof(struct proc_ldt),
-               M_SUBPROC, M_WAITOK);
+       new_ldt = malloc(sizeof(struct proc_ldt), M_SUBPROC, M_WAITOK);
 
        new_ldt->ldt_len = len = NEW_MAX_LD(len);
        new_ldt->ldt_base = (caddr_t)kmem_malloc(kernel_arena,
@@ -463,10 +462,11 @@ user_ldt_alloc(struct mdproc *mdp, int len)
 void
 user_ldt_free(struct thread *td)
 {
-       struct mdproc *mdp = &td->td_proc->p_md;
+       struct mdproc *mdp;
        struct proc_ldt *pldt;
 
        mtx_assert(&dt_lock, MA_OWNED);
+       mdp = &td->td_proc->p_md;
        if ((pldt = mdp->md_ldt) == NULL) {
                mtx_unlock_spin(&dt_lock);
                return;
@@ -587,12 +587,11 @@ i386_set_ldt(td, uap, descs)
                return (0);
        }
 
-       if (!(uap->start == LDT_AUTO_ALLOC && uap->num == 1)) {
+       if (uap->start != LDT_AUTO_ALLOC || uap->num != 1) {
                /* verify range of descriptors to modify */
                largest_ld = uap->start + uap->num;
-               if (uap->start >= MAX_LD || largest_ld > MAX_LD) {
+               if (uap->start >= MAX_LD || largest_ld > MAX_LD)
                        return (EINVAL);
-               }
        }
 
        /* Check descriptors for access violations */
@@ -618,12 +617,7 @@ i386_set_ldt(td, uap, descs)
                case SDT_SYS386TGT: /* system 386 trap gate */
                case SDT_SYS286CGT: /* system 286 call gate */ 
                case SDT_SYS386CGT: /* system 386 call gate */
-                       /* I can't think of any reason to allow a user proc
-                        * to create a segment of these types.  They are
-                        * for OS use only.
-                        */
                        return (EACCES);
-                       /*NOTREACHED*/
 
                /* memory segment types */
                case SDT_MEMEC:   /* memory execute only conforming */
@@ -648,12 +642,11 @@ i386_set_ldt(td, uap, descs)
                case SDT_MEMERA:  /* memory execute read accessed */
                        break;
                default:
-                       return(EINVAL);
-                       /*NOTREACHED*/
+                       return (EINVAL);
                }
 
                /* Only user (ring-3) descriptors may be present. */
-               if ((dp->sd.sd_p != 0) && (dp->sd.sd_dpl != SEL_UPL))
+               if (dp->sd.sd_p != 0 && dp->sd.sd_dpl != SEL_UPL)
                        return (EACCES);
        }
 
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