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Do not pass whole descriptor block size as align to fwdma_malloc_multiseg

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Do not pass wrong alignment value to fwdma_malloc_multiseg and ultimately
to contigalloc. In addition to being wrong, this causes insta-panic in
certain cases due to safety assertion - the alignment is required to be
the power of two and the value we calculate here seldom is.

MFC after:  1 month
This commit is contained in:
Alexander Kabaev 2014-09-27 16:50:24 +00:00
parent 23667f089d
commit 1ade5ec79a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=272215
1 changed files with 1 additions and 1 deletions
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2
sys/dev/firewire/fwohci.c
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@ -1253,7 +1253,7 @@ fwohci_db_init(struct fwohci_softc *sc, struct fwohci_dbch *dbch)
}
#define DB_SIZE(x) (sizeof(struct fwohcidb) * (x)->ndesc)
dbch->am = fwdma_malloc_multiseg(&sc->fc, DB_SIZE(dbch),
dbch->am = fwdma_malloc_multiseg(&sc->fc, sizeof(struct fwohcidb),
DB_SIZE(dbch), dbch->ndb, BUS_DMA_WAITOK);
if (dbch->am == NULL) {
printf("fwohci_db_init: fwdma_malloc_multiseg failed\n");