fusefs: fix a panic on mount
Don't page fault if the file descriptor provided with "-o fd" is invalid. This is a merge of r345419 from the projects/fuse2 branch. Reviewed by: ngie Tested by: Marek Zarychta <zarychtam@plan-b.pwste.edu.pl> MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D19836
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=345986
@ -225,7 +225,7 @@ fuse_vfsop_mount(struct mount *mp)
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size_t len;
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struct cdev *fdev;
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struct fuse_data *data;
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struct fuse_data *data = NULL;
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struct thread *td;
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struct file *fp, *fptmp;
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char *fspec, *subtype;
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@ -361,7 +361,7 @@ fuse_vfsop_mount(struct mount *mp)
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out:
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if (err) {
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FUSE_LOCK();
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if (data->mp == mp) {
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if (data != NULL && data->mp == mp) {
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/*
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* Destroy device only if we acquired reference to
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* it
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