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| author | Arnd Bergmann <arnd@arndb.de> | 2021-03-23 14:18:35 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-04-07 13:25:52 +0100 |
| commit | 8e13d96670a4c050d4883e6743a9e9858e5cfe10 (patch) | |
| tree | eadd068ccac1d2660958b1a613f3360267d20808 /drivers/irqchip | |
| parent | e03b7c1bcbfad6f27b4682f638b98627c4e416ba (diff) | |
| download | linux-8e13d96670a4c050d4883e6743a9e9858e5cfe10.tar.bz2 | |
irqchip/gic-v3: Fix OF_BAD_ADDR error handling
When building with extra warnings enabled, clang points out a
mistake in the error handling:
drivers/irqchip/irq-gic-v3-mbi.c:306:21: error: result of comparison of constant 18446744073709551615 with expression of type 'phys_addr_t' (aka 'unsigned int') is always false [-Werror,-Wtautological-constant-out-of-range-compare]
if (mbi_phys_base == OF_BAD_ADDR) {
Truncate the constant to the same type as the variable it gets compared
to, to shut make the check work and void the warning.
Fixes: 505287525c24 ("irqchip/gic-v3: Add support for Message Based Interrupts as an MSI controller")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210323131842.2773094-1-arnd@kernel.org
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-gic-v3-mbi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/irqchip/irq-gic-v3-mbi.c b/drivers/irqchip/irq-gic-v3-mbi.c index 563a9b366294..e81e89a81cb5 100644 --- a/drivers/irqchip/irq-gic-v3-mbi.c +++ b/drivers/irqchip/irq-gic-v3-mbi.c @@ -303,7 +303,7 @@ int __init mbi_init(struct fwnode_handle *fwnode, struct irq_domain *parent) reg = of_get_property(np, "mbi-alias", NULL); if (reg) { mbi_phys_base = of_translate_address(np, reg); - if (mbi_phys_base == OF_BAD_ADDR) { + if (mbi_phys_base == (phys_addr_t)OF_BAD_ADDR) { ret = -ENXIO; goto err_free_mbi; } |