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bcma: return error in bcma_sprom_get() when fallback fails

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When not SPROM is available a fallback mechanism is used. However,
when that fails the code currently continues. This patch assures
that the bcma_sprom_get() function aborts when that happens.

Cc: Rafal Milecki <zajec5@gmail.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arend van Spriel 2012-03-06 15:50:47 +01:00 committed by John W. Linville
parent 5c17ddc4a0
commit 4ac887cfda
1 changed files with 17 additions and 10 deletions
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27
drivers/bcma/sprom.c
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@ -49,10 +49,23 @@ int bcma_arch_register_fallback_sprom(int (*sprom_callback)(struct bcma_bus *bus
static int bcma_fill_sprom_with_fallback(struct bcma_bus *bus, static int bcma_fill_sprom_with_fallback(struct bcma_bus *bus,
struct ssb_sprom *out) struct ssb_sprom *out)
{ {
if (!get_fallback_sprom) int err;
return -ENOENT;
return get_fallback_sprom(bus, out); if (!get_fallback_sprom) {
err = -ENOENT;
goto fail;
}
err = get_fallback_sprom(bus, out);
if (err)
goto fail;
pr_debug("Using SPROM revision %d provided by"
" platform.\n", bus->sprom.revision);
return 0;
fail:
pr_warn("Using fallback SPROM failed (err %d)\n", err);
return err;
} }
/************************************************** /**************************************************
@ -317,13 +330,7 @@ int bcma_sprom_get(struct bcma_bus *bus)
* available for this device in some other storage. * available for this device in some other storage.
*/ */
err = bcma_fill_sprom_with_fallback(bus, &bus->sprom); err = bcma_fill_sprom_with_fallback(bus, &bus->sprom);
if (err) { return err;
pr_warn("Using fallback SPROM failed (err %d)\n", err);
} else {
pr_debug("Using SPROM revision %d provided by"
" platform.\n", bus->sprom.revision);
return 0;
}
} }
sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16), sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16),