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mxser: move request irq to probe and switch to managed

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Move request_irq from mxser_initbrd to mxser_probe so that we can switch
it to managed request. It simplifies the cleanup code.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210618061516.662-47-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2021-06-18 08:14:52 +02:00 committed by Greg Kroah-Hartman
parent dcb04e21bb
commit 7f0e79dc09
1 changed files with 9 additions and 21 deletions
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30
drivers/tty/mxser.c
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@ -1883,11 +1883,10 @@ static const struct tty_port_operations mxser_port_ops = {
* The MOXA Smartio/Industio serial driver boot-time initialization code!
*/
static int mxser_initbrd(struct mxser_board *brd)
static void mxser_initbrd(struct mxser_board *brd)
{
struct mxser_port *info;
unsigned int i;
int retval;
bool is_mu860;
brd->must_hwid = mxser_must_get_hwid(brd->ports[0].ioaddr);
@ -1939,18 +1938,6 @@ static int mxser_initbrd(struct mxser_board *brd)
outb(inb(info->ioaddr + UART_IER) & 0xf0,
info->ioaddr + UART_IER);
}
retval = request_irq(brd->irq, mxser_interrupt, IRQF_SHARED, "mxser",
brd);
if (retval) {
for (i = 0; i < brd->info->nports; i++)
tty_port_destroy(&brd->ports[i].port);
printk(KERN_ERR "Board %s: Request irq failed, IRQ (%d) may "
"conflict with another device.\n",
brd->info->name, brd->irq);
}
return retval;
}
static int mxser_probe(struct pci_dev *pdev,
@ -2004,10 +1991,14 @@ static int mxser_probe(struct pci_dev *pdev,
/* irq */
brd->irq = pdev->irq;
/* mxser_initbrd will hook ISR. */
retval = mxser_initbrd(brd);
if (retval)
goto err_zero;
mxser_initbrd(brd);
retval = devm_request_irq(&pdev->dev, brd->irq, mxser_interrupt,
IRQF_SHARED, "mxser", brd);
if (retval) {
dev_err(&pdev->dev, "request irq failed");
goto err_relbrd;
}
for (i = 0; i < brd->info->nports; i++) {
tty_dev = tty_port_register_device(&brd->ports[i].port,
@ -2027,7 +2018,6 @@ static int mxser_probe(struct pci_dev *pdev,
err_relbrd:
for (i = 0; i < brd->info->nports; i++)
tty_port_destroy(&brd->ports[i].port);
free_irq(brd->irq, brd);
err_zero:
brd->info = NULL;
err:
@ -2044,8 +2034,6 @@ static void mxser_remove(struct pci_dev *pdev)
tty_port_destroy(&brd->ports[i].port);
}
free_irq(brd->irq, brd);
brd->info = NULL;
}