lkml.org 
[lkml]   [2008]   [Oct]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] Fix NULL pointer dereference on r8169 load
From: Petr Vandrovec <petr@vandrovec.name>

mmio_addr in r8169 needs to be initialized before use

Maybe that all tp-> initialization should be moved before rtl_init_mac_address call,
but this is enough to get rid of crash in rtl_rar_set due to mmio_addr being uninitialized.

Signed-off-by: Petr Vandrovec <petr@vandrovec.name>

diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index bdae2c5..c821da2 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -2154,6 +2154,8 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)

spin_lock_init(&tp->lock);

+ tp->mmio_addr = ioaddr;
+
rtl_init_mac_address(tp, ioaddr);

/* Get MAC address */
@@ -2186,7 +2188,6 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
#endif

tp->intr_mask = 0xffff;
- tp->mmio_addr = ioaddr;
tp->align = cfg->align;
tp->hw_start = cfg->hw_start;
tp->intr_event = cfg->intr_event;

\
 
 \ /
  Last update: 2008-10-12 10:43    [W:0.039 / U:4.344 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site