From: Zheyu Ma <zheyuma97@gmail.com>
Date: Tue, 22 Jun 2021 07:11:31 +0000 (+0000)
Subject: pcmcia: i82092: fix a null pointer dereference bug
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b84e587e0c881a3510cda632867683102fe3fdf8;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

pcmcia: i82092: fix a null pointer dereference bug

commit e39cdacf2f664b09029e7c1eb354c91a20c367af upstream.

During the driver loading process, the 'dev' field was not assigned, but
the 'dev' field was referenced in the subsequent 'i82092aa_set_mem_map'
function.

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
CC: <stable@vger.kernel.org>
[linux@dominikbrodowski.net: shorten commit message, add Cc to stable]
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/pcmcia/i82092.c b/drivers/pcmcia/i82092.c
index aae7e6df99cd..ba13e3c3d6b8 100644
--- a/drivers/pcmcia/i82092.c
+++ b/drivers/pcmcia/i82092.c
@@ -105,6 +105,7 @@ static int i82092aa_pci_probe(struct pci_dev *dev, const struct pci_device_id *i
 	for (i = 0;i<socket_count;i++) {
 		sockets[i].card_state = 1; /* 1 = present but empty */
 		sockets[i].io_base = pci_resource_start(dev, 0);
+		sockets[i].dev = dev;
 		sockets[i].socket.features |= SS_CAP_PCCARD;
 		sockets[i].socket.map_size = 0x1000;
 		sockets[i].socket.irq_mask = 0;