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Test for NULL before use.

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Submitted by:	sam (Coverity)
This commit is contained in:
Matthew N. Dodd 2005-04-13 17:39:43 +00:00
parent 682249c035
commit 8437ff3c79
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=145024
1 changed files with 11 additions and 12 deletions
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23
sys/dev/ida/ida.c
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@ -80,21 +80,20 @@ ida_free(struct ida_softc *ida)
callout_stop(&ida->ch);
for (i = 0; i < ida->num_qcbs; i++)
bus_dmamap_destroy(ida->buffer_dmat, ida->qcbs[i].dmamap);
if (ida->hwqcb_busaddr)
bus_dmamap_unload(ida->hwqcb_dmat, ida->hwqcb_dmamap);
if (ida->hwqcbs)
bus_dmamem_free(ida->hwqcb_dmat, ida->hwqcbs,
ida->hwqcb_dmamap);
if (ida->buffer_dmat)
if (ida->buffer_dmat) {
for (i = 0; i < ida->num_qcbs; i++)
bus_dmamap_destroy(ida->buffer_dmat, ida->qcbs[i].dmamap);
bus_dma_tag_destroy(ida->buffer_dmat);
}
if (ida->hwqcb_dmat)
if (ida->hwqcb_dmat) {
if (ida->hwqcb_busaddr)
bus_dmamap_unload(ida->hwqcb_dmat, ida->hwqcb_dmamap);
if (ida->hwqcbs)
bus_dmamem_free(ida->hwqcb_dmat, ida->hwqcbs,
ida->hwqcb_dmamap);
bus_dma_tag_destroy(ida->hwqcb_dmat);
}
if (ida->qcbs != NULL)
free(ida->qcbs, M_DEVBUF);