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| author | Andre Werner <andre.werner@systec-electronic.com> | 2025-01-21 10:18:19 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-02-04 16:42:42 +0300 |
| commit | e8ed246ded863eb862806c5591afdcf70012ab5e (patch) | |
| tree | b793c1decf711ee0e584184acde743c3fb9f98c0 /rust/helpers/helpers.c | |
| parent | 2014c95afecee3e76ca4a56956a936e23283f05b (diff) | |
| download | linux-e8ed246ded863eb862806c5591afdcf70012ab5e.tar.xz | |
serial: sc16is7xx: Fix IRQ number check behavior
The logical meaning of the previous version is wrong due to a typo.
If the IRQ equals 0, no interrupt pin is available and polling mode
shall be used.
Additionally, this fix adds a check for IRQ < 0 to increase robustness,
because documentation still says that negative IRQ values cannot be
absolutely ruled-out.
Fixes: 104c1b9dde9d ("serial: sc16is7xx: Add polling mode if no IRQ pin is available")
Signed-off-by: Andre Werner <andre.werner@systec-electronic.com>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Maarten Brock <maarten.brock@sttls.nl>
Reviewed-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://lore.kernel.org/r/20250121071819.1346672-1-andre.werner@systec-electronic.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'rust/helpers/helpers.c')
0 files changed, 0 insertions, 0 deletions