Author: ian
Date: Sat Feb 17 23:39:10 2018
New Revision: 329480
URL: https://svnweb.freebsd.org/changeset/base/329480

Log:
  Don't call sdhci_cleanup_slot() if sdhci_init_slot() never got called.
  Also, do callout_init() very early in attach, so that callout_drain()
  can be called in detach without worrying about whether it ever got init'd.

Modified:
  head/sys/dev/sdhci/fsl_sdhci.c

Modified: head/sys/dev/sdhci/fsl_sdhci.c
==============================================================================
--- head/sys/dev/sdhci/fsl_sdhci.c      Sat Feb 17 23:23:27 2018        
(r329479)
+++ head/sys/dev/sdhci/fsl_sdhci.c      Sat Feb 17 23:39:10 2018        
(r329480)
@@ -92,6 +92,7 @@ struct fsl_sdhci_softc {
        uint16_t                sdclockreg_freq_bits;
        uint8_t                 r1bfix_type;
        uint8_t                 hwtype;
+       bool                    slot_init_done;
 };
 
 #define        R1BFIX_NONE     0       /* No fix needed at next interrupt. */
@@ -810,6 +811,9 @@ fsl_sdhci_detach(device_t dev)
 
        callout_drain(&sc->r1bfix_callout);
 
+       if (sc->slot_init_done)
+               sdhci_cleanup_slot(&sc->slot);
+
        if (sc->intr_cookie != NULL)
                bus_teardown_intr(dev, sc->irq_res, sc->intr_cookie);
        if (sc->irq_res != NULL)
@@ -817,7 +821,6 @@ fsl_sdhci_detach(device_t dev)
                    rman_get_rid(sc->irq_res), sc->irq_res);
 
        if (sc->mem_res != NULL) {
-               sdhci_cleanup_slot(&sc->slot);
                bus_release_resource(dev, SYS_RES_MEMORY,
                    rman_get_rid(sc->mem_res), sc->mem_res);
        }
@@ -837,6 +840,8 @@ fsl_sdhci_attach(device_t dev)
 
        sc->dev = dev;
 
+       callout_init(&sc->r1bfix_callout, 1);
+
        sc->hwtype = ofw_bus_search_compatible(dev, compat_data)->ocd_data;
        if (sc->hwtype == HWTYPE_NONE)
                panic("Impossible: not compatible in fsl_sdhci_attach()");
@@ -924,8 +929,8 @@ fsl_sdhci_attach(device_t dev)
        WR4(sc, SDHC_PROT_CTRL, protctl);
 #endif
 
-       callout_init(&sc->r1bfix_callout, 1);
        sdhci_init_slot(dev, &sc->slot, 0);
+       sc->slot_init_done = true;
 
        bus_generic_probe(dev);
        bus_generic_attach(dev);
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