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Code Issues Releases Activity

physio: avoid uninitialized variables

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This commit is contained in:
Matt Macy 2018-05-19 04:09:58 +00:00
parent e9b1074bc7
commit cd6ba3f086
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=333842
1 changed files with 3 additions and 1 deletions
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4
sys/kern/kern_physio.c
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@ -51,6 +51,8 @@ physio(struct cdev *dev, struct uio *uio, int ioflag)
vm_prot_t prot;
csw = dev->si_devsw;
npages = 0;
sa = NULL;
/* check if character device is being destroyed */
if (csw == NULL)
return (ENXIO);
@ -177,7 +179,7 @@ physio(struct cdev *dev, struct uio *uio, int ioflag)
error = EFAULT;
goto doerror;
}
if (pbuf) {
if (pbuf && sa) {
pmap_qenter((vm_offset_t)sa,
pages, npages);
bp->bio_data = sa + poff;