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fusefs: fix some memory leaks

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Fix memory leaks relating to FUSE_BMAP and FUSE_CREATE.  There are still
leaks relating to FUSE_INTERRUPT, but they'll be harder to fix since the
server is legally allowed to never respond to a FUSE_INTERRUPT operation.

Sponsored by:	The FreeBSD Foundation
This commit is contained in:
asomers 2019-06-27 00:00:48 +00:00
parent d49c4d1290
commit 51d5aa0451
1 changed files with 3 additions and 0 deletions
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3
sys/fs/fuse/fuse_vnops.c
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@ -536,12 +536,14 @@ fuse_vnop_bmap(struct vop_bmap_args *ap)
fbi->blocksize = biosize;
error = fdisp_wait_answ(&fdi);
if (error == ENOSYS) {
fdisp_destroy(&fdi);
fsess_set_notimpl(mp, FUSE_BMAP);
error = 0;
} else {
fbo = fdi.answ;
if (error == 0 && pbn != NULL)
*pbn = fbo->block;
fdisp_destroy(&fdi);
return error;
}
}
@ -693,6 +695,7 @@ fuse_vnop_create(struct vop_create_args *ap)
if (err) {
if (err == ENOSYS && op == FUSE_CREATE) {
fsess_set_notimpl(mp, FUSE_CREATE);
fdisp_destroy(fdip);
fdisp_make_mknod_for_fallback(fdip, cnp, dvp,
parentnid, td, cred, mode, &op);
err = fdisp_wait_answ(fdip);