Signed-off-by: Peter Hurley <[email protected]>
---
drivers/staging/fwserial/fwserial.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/fwserial/fwserial.c
b/drivers/staging/fwserial/fwserial.c
index 912b17a..912ab77 100644
--- a/drivers/staging/fwserial/fwserial.c
+++ b/drivers/staging/fwserial/fwserial.c
@@ -569,8 +569,11 @@ static int fwtty_buffer_rx(struct fwtty_port *port,
unsigned char *d, size_t n)
struct buffered_rx *buf;
size_t size = (n + sizeof(struct buffered_rx) + 0xFF) & ~0xFF;
- if (port->buffered + n > HIGH_WATERMARK)
+ if (port->buffered + n > HIGH_WATERMARK) {
+ fwtty_err_ratelimited(port, "overflowed rx buffer: buffered: %d
new: %ld wtrmk: %d",
+ port->buffered, n, HIGH_WATERMARK);
return 0;
+ }
buf = kmalloc(size, GFP_ATOMIC);
if (!buf)
return 0;
--
1.8.1.1
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