Re: [syzbot] printk debug

From: syzbot
Date: Thu Nov 23 2023 - 14:08:41 EST


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***

Subject: printk debug
Author: yuran.pereira@xxxxxxxxxxx

#syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

---
drivers/staging/rtl8712/rtl871x_xmit.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/staging/rtl8712/rtl871x_xmit.c b/drivers/staging/rtl8712/rtl871x_xmit.c
index 6353dbe554d3..c80c60417d5c 100644
--- a/drivers/staging/rtl8712/rtl871x_xmit.c
+++ b/drivers/staging/rtl8712/rtl871x_xmit.c
@@ -125,6 +125,7 @@ int _r8712_init_xmit_priv(struct xmit_priv *pxmitpriv,
((addr_t)(pxmitpriv->pallocated_xmitbuf) & 3);
pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;
for (i = 0; i < NR_XMITBUFF; i++) {
+ pr_info("==> Allocating pallocated_buf %d\n", i);
INIT_LIST_HEAD(&pxmitbuf->list);
pxmitbuf->pallocated_buf =
kmalloc(MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ, GFP_ATOMIC);
@@ -188,6 +189,7 @@ void _free_xmit_priv(struct xmit_priv *pxmitpriv)
pxmitframe++;
}
for (i = 0; i < NR_XMITBUFF; i++) {
+ pr_info("==> Freeing pallocated_buf %d\n", i);
r8712_xmit_resource_free(padapter, pxmitbuf);
kfree(pxmitbuf->pallocated_buf);
pxmitbuf++;
--
2.25.1