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pci server crashes during boot on Qubes OS

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I tried to launch Minix3 in Qubes OS. While there is no problem to boot
minix as a qube (in Qubes OS terminology) before 3641562, it fails with
the commit (and after). I didn't digg into PCI handling but this change
fixes the problem. Minix handles NULL case from pci_subclass_name.

Change-Id: I162424d92b613598e6eb845a71f90a02e31041db
This commit is contained in:
Krystian Lewandowski 2017-11-15 18:29:06 +01:00 committed by Lionel Sambuc
parent 39d31d9fab
commit b2ee0702ff
1 changed files with 5 additions and 1 deletions
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6
sys/dev/pci/pci_subr.c
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@ -617,7 +617,11 @@ pci_subclass_name(pcireg_t reg)
subclassp++; subclassp++;
} }
return subclassp->name; if (subclassp) {
return subclassp->name;
} else {
return NULL;
}
} }
#endif /* defined(__minix) && defined(_PCI_SERVER) */ #endif /* defined(__minix) && defined(_PCI_SERVER) */