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lxc: don't try to resolve a NULL path for filesystems
<filesystem type='ram' accessmode='passthrough'> <source usage='524288' units='KiB'/> <target dir='/dev/shm'/> </filesystem> would lead to lxcContainerResolveSymlinks calling access(NULL) because it failed to check if fs->src->path was non-NULL. This is a regression caused by commit da665fbd4858890fbb3bbf5da2a7b6ca37bb3220 Author: Olga Krishtal <okrishtal@virtuozzo.com> Date: Thu Jul 14 16:52:38 2016 +0300 filesystem: adds possibility to use storage pool as fs source Signed-off-by: Olga Krishtal <okrishtal@virtuozzo.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
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@ -616,7 +616,7 @@ static int lxcContainerResolveSymlinks(virDomainFSDefPtr fs, bool gentle)
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{
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char *newroot;
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if (!fs->src || fs->symlinksResolved)
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if (!fs->src || !fs->src->path || fs->symlinksResolved)
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return 0;
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if (access(fs->src->path, F_OK)) {
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