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Prevent dereferencing a NULL pointer if the malloc() fails.

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CID:		219
Found with:	Coverity Prevent(tm)
This commit is contained in:
Alexander Leidinger 2006-01-21 11:50:56 +00:00
parent e97333cbc4
commit a7571c3f6b
1 changed files with 10 additions and 9 deletions
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19
sys/dev/sound/pci/maestro.c
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@ -1928,18 +1928,19 @@ agg_attach(device_t dev)
bus_release_resource(dev, SYS_RES_IRQ, irqid, irq);
if (reg != NULL)
bus_release_resource(dev, SYS_RES_IOPORT, regid, reg);
if (ess->stat != NULL)
dma_free(ess->stat_dmat, ess->stat);
if (ess->stat_dmat != NULL)
bus_dma_tag_destroy(ess->stat_dmat);
if (ess->buf_dmat != NULL)
bus_dma_tag_destroy(ess->buf_dmat);
if (ess != NULL) {
if (ess->stat != NULL)
dma_free(ess->stat_dmat, ess->stat);
if (ess->stat_dmat != NULL)
bus_dma_tag_destroy(ess->stat_dmat);
if (ess->buf_dmat != NULL)
bus_dma_tag_destroy(ess->buf_dmat);
#ifdef USING_MUTEX
if (mtx_initialized(&ess->lock))
mtx_destroy(&ess->lock);
if (mtx_initialized(&ess->lock))
mtx_destroy(&ess->lock);
#endif
if (ess != NULL)
free(ess, M_DEVBUF);
}
return ret;
}