diff options
Diffstat (limited to 'drivers/soc/aspeed/aspeed-lpc-snoop.c')
| -rw-r--r-- | drivers/soc/aspeed/aspeed-lpc-snoop.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/soc/aspeed/aspeed-lpc-snoop.c b/drivers/soc/aspeed/aspeed-lpc-snoop.c index 9ab5ba9cf1d6..ef8f355589a5 100644 --- a/drivers/soc/aspeed/aspeed-lpc-snoop.c +++ b/drivers/soc/aspeed/aspeed-lpc-snoop.c @@ -166,7 +166,7 @@ static int aspeed_lpc_snoop_config_irq(struct aspeed_lpc_snoop *lpc_snoop, int rc; lpc_snoop->irq = platform_get_irq(pdev, 0); - if (!lpc_snoop->irq) + if (lpc_snoop->irq < 0) return -ENODEV; rc = devm_request_irq(dev, lpc_snoop->irq, @@ -200,11 +200,15 @@ static int aspeed_lpc_enable_snoop(struct aspeed_lpc_snoop *lpc_snoop, lpc_snoop->chan[channel].miscdev.minor = MISC_DYNAMIC_MINOR; lpc_snoop->chan[channel].miscdev.name = devm_kasprintf(dev, GFP_KERNEL, "%s%d", DEVICE_NAME, channel); + if (!lpc_snoop->chan[channel].miscdev.name) { + rc = -ENOMEM; + goto err_free_fifo; + } lpc_snoop->chan[channel].miscdev.fops = &snoop_fops; lpc_snoop->chan[channel].miscdev.parent = dev; rc = misc_register(&lpc_snoop->chan[channel].miscdev); if (rc) - return rc; + goto err_free_fifo; /* Enable LPC snoop channel at requested port */ switch (channel) { @@ -221,7 +225,8 @@ static int aspeed_lpc_enable_snoop(struct aspeed_lpc_snoop *lpc_snoop, hicrb_en = HICRB_ENSNP1D; break; default: - return -EINVAL; + rc = -EINVAL; + goto err_misc_deregister; } regmap_update_bits(lpc_snoop->regmap, HICR5, hicr5_en, hicr5_en); @@ -231,6 +236,12 @@ static int aspeed_lpc_enable_snoop(struct aspeed_lpc_snoop *lpc_snoop, regmap_update_bits(lpc_snoop->regmap, HICRB, hicrb_en, hicrb_en); + return 0; + +err_misc_deregister: + misc_deregister(&lpc_snoop->chan[channel].miscdev); +err_free_fifo: + kfifo_free(&lpc_snoop->chan[channel].fifo); return rc; } |