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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-12 12:27:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-12 12:27:05 -0700 |
| commit | c46fe4aa8271e97b520dc72018688e083460127c (patch) | |
| tree | b6f95d192a07eccbfeede763714c93dbdb737208 | |
| parent | 0d50658834f9f655559f07ee61f227c435d8e481 (diff) | |
| parent | 7c3e8d9df265bd0bdf6e328174cdfba26eb22f1c (diff) | |
Merge tag 'tty-5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull serial driver fix from Greg KH:
"A single 8250_exar serial driver fix for a reported problem with a
change that happened in 5.13-rc1.
It has been in linux-next with no reported problems"
* tag 'tty-5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: 8250_exar: Avoid NULL pointer dereference at ->exit()
| -rw-r--r-- | drivers/tty/serial/8250/8250_exar.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c index 2f49c580139b..bd4e9f6ac29c 100644 --- a/drivers/tty/serial/8250/8250_exar.c +++ b/drivers/tty/serial/8250/8250_exar.c @@ -553,7 +553,11 @@ static void pci_xr17v35x_exit(struct pci_dev *pcidev) { struct exar8250 *priv = pci_get_drvdata(pcidev); struct uart_8250_port *port = serial8250_get_port(priv->line[0]); - struct platform_device *pdev = port->port.private_data; + struct platform_device *pdev; + + pdev = port->port.private_data; + if (!pdev) + return; device_remove_software_node(&pdev->dev); platform_device_unregister(pdev); |