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Always initialize pattern_buf pointers to NULL, otherwise AMD64 machine

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panics with:
   free: address xxx(yyy) has not been allocated.
it can be triggered by hald.
This commit is contained in:
David Xu 2012-12-26 13:07:17 +00:00
parent 322f22f7b5
commit fee3029ce7
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=244695
1 changed files with 2 additions and 4 deletions
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6
sys/dev/pci/pci_user.c
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@ -425,12 +425,12 @@ pci_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *t
#ifdef COMPAT_FREEBSD32
struct pci_conf_io32 *cio32 = NULL;
struct pci_conf_old32 conf_old32;
struct pci_match_conf_old32 *pattern_buf_old32;
struct pci_match_conf_old32 *pattern_buf_old32 = NULL;
#endif
struct pci_conf_old conf_old;
struct pci_io iodata;
struct pci_io_old *io_old;
struct pci_match_conf_old *pattern_buf_old;
struct pci_match_conf_old *pattern_buf_old = NULL;
io_old = NULL;
@ -470,10 +470,8 @@ pci_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *t
#ifdef PRE7_COMPAT
#ifdef COMPAT_FREEBSD32
case PCIOCGETCONF_OLD32:
pattern_buf_old32 = NULL;
#endif
case PCIOCGETCONF_OLD:
pattern_buf_old = NULL;
#endif
case PCIOCGETCONF: