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[RFC,v3,09/13] bcma: add check if sprom is available before accessing it.

Message ID 1309385518-12097-10-git-send-email-hauke@hauke-m.de (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Hauke Mehrtens June 29, 2011, 10:11 p.m. UTC 
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
 drivers/bcma/main.c  |    4 +++-
 drivers/bcma/sprom.c |    3 +++
 2 files changed, 6 insertions(+), 1 deletions(-)
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Patch

diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c
index 7dd0b16..2750aa5 100644
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -160,7 +160,9 @@  int bcma_bus_register(struct bcma_bus *bus)
 
 	/* Try to get SPROM */
 	err = bcma_sprom_get(bus);
-	if (err) {
+	if (err == -ENOENT) {
+		pr_err("No SPROM available\n");
+	} else if (err) {
 		pr_err("Failed to get SPROM: %d\n", err);
 		return -ENOENT;
 	}
diff --git a/drivers/bcma/sprom.c b/drivers/bcma/sprom.c
index ffbb0e3..8e8d5cf 100644
--- a/drivers/bcma/sprom.c
+++ b/drivers/bcma/sprom.c
@@ -143,6 +143,9 @@  int bcma_sprom_get(struct bcma_bus *bus)
 	if (!bus->drv_cc.core)
 		return -EOPNOTSUPP;
 
+	if (!(bus->drv_cc.capabilities & BCMA_CC_CAP_SPROM))
+		return -ENOENT;
+
 	sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16),
 			GFP_KERNEL);
 	if (!sprom)