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| author | Arend van Spriel <arend@broadcom.com> | 2012-03-06 15:50:47 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-03-06 15:16:18 -0500 |
| commit | 4ac887cfdad909f16ee1886fe4fa19b452fc7fd3 (patch) | |
| tree | c1097f92d77ca108ff5a3e6cec0800287fefc80b /drivers/bcma | |
| parent | 5c17ddc4a047c59638c7eb8537aa887a1ddb9b0b (diff) | |
| download | linux-4ac887cfdad909f16ee1886fe4fa19b452fc7fd3.tar.gz linux-4ac887cfdad909f16ee1886fe4fa19b452fc7fd3.tar.bz2 linux-4ac887cfdad909f16ee1886fe4fa19b452fc7fd3.zip | |
bcma: return error in bcma_sprom_get() when fallback fails
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>
Diffstat (limited to 'drivers/bcma')
| -rw-r--r-- | drivers/bcma/sprom.c | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/drivers/bcma/sprom.c b/drivers/bcma/sprom.c index 916ae255ff64..fba8066857d2 100644 --- a/drivers/bcma/sprom.c +++ b/drivers/bcma/sprom.c @@ -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, struct ssb_sprom *out) { - if (!get_fallback_sprom) - return -ENOENT; + int err; - 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. */ err = bcma_fill_sprom_with_fallback(bus, &bus->sprom); - if (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; - } + return err; } sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16), |