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From: Jan Kiszka <jan.kiszka@siemens.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	linux-serial@vger.kernel.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [PATCH] serial: 8250_lpss: Release Quark MSI vectors on exit
Date: Wed, 4 Jan 2017 20:36:51 +0100	[thread overview]
Message-ID: <0250c46e-da6c-71f3-50ae-b7c17fd0bd2c@siemens.com> (raw)

No one seems to do this magically in the background, so we have to do
the job in the exit handler that corresponds to the board setup handler.

Fixes: 60a9244a5d14 ("serial: 8250_lpss: enable MSI for Intel Quark")
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
 drivers/tty/serial/8250/8250_lpss.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_lpss.c b/drivers/tty/serial/8250/8250_lpss.c
index 58cbb30..f09f68a 100644
--- a/drivers/tty/serial/8250/8250_lpss.c
+++ b/drivers/tty/serial/8250/8250_lpss.c
@@ -47,7 +47,7 @@ struct lpss8250_board {
 	unsigned long freq;
 	unsigned int base_baud;
 	int (*setup)(struct lpss8250 *, struct uart_port *p);
-	void (*exit)(struct lpss8250 *);
+	void (*exit)(struct lpss8250 *, struct pci_dev *pdev);
 };
 
 struct lpss8250 {
@@ -226,9 +226,10 @@ static int qrk_serial_setup(struct lpss8250 *lpss, struct uart_port *port)
 	return 0;
 }
 
-static void qrk_serial_exit(struct lpss8250 *lpss)
+static void qrk_serial_exit(struct lpss8250 *lpss, struct pci_dev *pdev)
 {
 	qrk_serial_exit_dma(lpss);
+	pci_free_irq_vectors(pdev);
 }
 
 static bool lpss8250_dma_filter(struct dma_chan *chan, void *param)
@@ -324,7 +325,7 @@ static int lpss8250_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 err_exit:
 	if (lpss->board->exit)
-		lpss->board->exit(lpss);
+		lpss->board->exit(lpss, pdev);
 	return ret;
 }
 
@@ -333,7 +334,7 @@ static void lpss8250_remove(struct pci_dev *pdev)
 	struct lpss8250 *lpss = pci_get_drvdata(pdev);
 
 	if (lpss->board->exit)
-		lpss->board->exit(lpss);
+		lpss->board->exit(lpss, pdev);
 
 	serial8250_unregister_port(lpss->line);
 }
-- 
2.1.4

             reply	other threads:[~2017-01-04 19:36 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-04 19:36 Jan Kiszka [this message]
2017-01-04 22:19 ` [PATCH] serial: 8250_lpss: Release Quark MSI vectors on exit Andy Shevchenko
2017-01-04 22:46   ` Jan Kiszka
2017-01-04 22:52     ` Andy Shevchenko
2017-01-05  5:25     ` Christoph Hellwig
2017-01-05  7:03       ` Jan Kiszka
2017-01-08 10:24   ` Christoph Hellwig
2017-01-08 16:04     ` Andy Shevchenko
2017-01-05  5:25 ` Christoph Hellwig
2017-01-05  9:01   ` Andy Shevchenko

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