Some of the fm_port_to_index() callers did not check for -1 return value and
used -1 as an array index.
Signed-off-by: Marian Rotariu <marian.rota...@freescale.com>
---
drivers/net/fm/fm.h | 3 ++-
drivers/net/fm/init.c | 6 ++++++
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/net/fm/fm.h b/drivers/net/fm/fm.h
index 43de114..316e06e 100644
--- a/drivers/net/fm/fm.h
+++ b/drivers/net/fm/fm.h
@@ -143,6 +143,7 @@ struct fm_eth {
#define MAX_RXBUF_LOG2 11
#define MAX_RXBUF_LEN (1 << MAX_RXBUF_LOG2)
-#define PORT_IS_ENABLED(port) fm_info[fm_port_to_index(port)].enabled
+#define PORT_IS_ENABLED(port) (fm_port_to_index(port) == -1 ? \
+ 0 : fm_info[fm_port_to_index(port)].enabled)
#endif /* __FM_H__ */
diff --git a/drivers/net/fm/init.c b/drivers/net/fm/init.c
index cd787f4..ff04695 100644
--- a/drivers/net/fm/init.c
+++ b/drivers/net/fm/init.c
@@ -147,6 +147,9 @@ void fm_disable_port(enum fm_port port)
{
int i = fm_port_to_index(port);
+ if (i == -1)
+ return;
+
fm_info[i].enabled = 0;
fman_disable_port(port);
}
@@ -155,6 +158,9 @@ void fm_enable_port(enum fm_port port)
{
int i = fm_port_to_index(port);
+ if (i == -1)
+ return;
+
fm_info[i].enabled = 1;
fman_enable_port(port);
}
--
1.7.10.4
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