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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2021-10-22 15:51:45 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-10-26 08:41:00 +0200 |
| commit | 35b4f17231923e2f64521bdf7a2793ce2c3c74a6 (patch) | |
| tree | ec2a7be1f36ae288dfd3f8a497f30b7b0b5f56c5 /drivers/tty/serial/8250/8250_pci.c | |
| parent | tty: add rpmsg driver (diff) | |
| download | linux-35b4f17231923e2f64521bdf7a2793ce2c3c74a6.tar.xz linux-35b4f17231923e2f64521bdf7a2793ce2c3c74a6.zip | |
serial: 8250_pci: Refactor the loop in pci_ite887x_init()
The loop can be refactored by using ARRAY_SIZE() instead of NULL terminator.
This reduces code base and makes it easier to read and understand.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jiri Slaby <jslaby@kernel.org>
Link: https://lore.kernel.org/r/20211022135147.70965-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/tty/serial/8250/8250_pci.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index 93159557a2fb..8a2f42507c18 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -897,18 +897,16 @@ static int pci_netmos_init(struct pci_dev *dev) /* enable IO_Space bit */ #define ITE_887x_POSIO_ENABLE (1 << 31) +/* inta_addr are the configuration addresses of the ITE */ +static const short inta_addr[] = { 0x2a0, 0x2c0, 0x220, 0x240, 0x1e0, 0x200, 0x280 }; static int pci_ite887x_init(struct pci_dev *dev) { - /* inta_addr are the configuration addresses of the ITE */ - static const short inta_addr[] = { 0x2a0, 0x2c0, 0x220, 0x240, 0x1e0, - 0x200, 0x280, 0 }; int ret, i, type; struct resource *iobase = NULL; u32 miscr, uartbar, ioport; /* search for the base-ioport */ - i = 0; - while (inta_addr[i] && iobase == NULL) { + for (i = 0; i < ARRAY_SIZE(inta_addr); i++) { iobase = request_region(inta_addr[i], ITE_887x_IOSIZE, "ite887x"); if (iobase != NULL) { @@ -925,12 +923,10 @@ static int pci_ite887x_init(struct pci_dev *dev) break; } release_region(iobase->start, ITE_887x_IOSIZE); - iobase = NULL; } - i++; } - if (!inta_addr[i]) { + if (i == ARRAY_SIZE(inta_addr)) { dev_err(&dev->dev, "ite887x: could not find iobase\n"); return -ENODEV; } |