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-rw-r--r--drivers/ntb/ntb_transport.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index e11b57e1939c..1bed1ba2fe5e 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -368,10 +368,14 @@ static ssize_t debugfs_read(struct file *filp, char __user *ubuf, size_t count,
368 loff_t *offp) 368 loff_t *offp)
369{ 369{
370 struct ntb_transport_qp *qp; 370 struct ntb_transport_qp *qp;
371 char buf[1024]; 371 char *buf;
372 ssize_t ret, out_offset, out_count; 372 ssize_t ret, out_offset, out_count;
373 373
374 out_count = 1024; 374 out_count = 600;
375
376 buf = kmalloc(out_count, GFP_KERNEL);
377 if (!buf)
378 return -ENOMEM;
375 379
376 qp = filp->private_data; 380 qp = filp->private_data;
377 out_offset = 0; 381 out_offset = 0;
@@ -410,10 +414,13 @@ static ssize_t debugfs_read(struct file *filp, char __user *ubuf, size_t count,
410 "tx_mw_end - \t%p\n", qp->tx_mw_end); 414 "tx_mw_end - \t%p\n", qp->tx_mw_end);
411 415
412 out_offset += snprintf(buf + out_offset, out_count - out_offset, 416 out_offset += snprintf(buf + out_offset, out_count - out_offset,
413 "QP Link %s\n", (qp->qp_link == NTB_LINK_UP) ? 417 "\nQP Link %s\n", (qp->qp_link == NTB_LINK_UP) ?
414 "Up" : "Down"); 418 "Up" : "Down");
419 if (out_offset > out_count)
420 out_offset = out_count;
415 421
416 ret = simple_read_from_buffer(ubuf, count, offp, buf, out_offset); 422 ret = simple_read_from_buffer(ubuf, count, offp, buf, out_offset);
423 kfree(buf);
417 return ret; 424 return ret;
418} 425}
419 426