diff options
| author | Pei Xiao <xiaopei01@kylinos.cn> | 2026-08-17 11:29:25 +0800 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2026-08-18 11:43:05 +0200 |
| commit | 8b585431a16cfb9d8f2955a9fa0787ce3dceb3c2 (patch) | |
| tree | c888e8c5ee594758c1338fd479f00673c9445295 | |
| parent | 04cf68c9a76e3c6b67ad056a66a14923abf85925 (diff) | |
| download | linux-next-8b585431a16cfb9d8f2955a9fa0787ce3dceb3c2.tar.gz linux-next-8b585431a16cfb9d8f2955a9fa0787ce3dceb3c2.zip | |
parisc: eisa: Fix infinite loop when parsing invalid IRQ value
When an invalid value is passed via the "eisa_irq_edge=" kernel
command line parameter (e.g. "eisa_irq_edge=16,5"), eisa_irq_setup()
prints an error message and continues without advancing the current
position. As a result the same invalid value is parsed again and
again, causing an infinite loop while the kernel boots.
Advance to the next comma-separated entry, or stop parsing when there
is no next entry, before continuing so that the remaining entries are
processed normally.
Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn>
Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
| -rw-r--r-- | drivers/parisc/eisa.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c index 9eab974e6baf..b5b5413bfd1e 100644 --- a/drivers/parisc/eisa.c +++ b/drivers/parisc/eisa.c @@ -442,6 +442,11 @@ static int __init eisa_irq_setup(char *str) val = (int) simple_strtoul(cur, &pe, 0); if (val > 15 || val < 0) { printk(KERN_ERR "eisa: EISA irq value are 0-15\n"); + cur = strchr(cur, ','); + if (cur) + cur++; + else + break; continue; } if (val == 2) { |