diff options
| author | Michael Ellerman <mpe@ellerman.id.au> | 2016-09-06 14:53:24 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-09-20 13:57:12 +0300 |
| commit | ef24ba7091517d2bbf9ba2cb4256c0dccd51d248 (patch) | |
| tree | f988a2b82eab1ec83aa2a08e34190a9a32b4035f /arch/powerpc/sysdev/axonram.c | |
| parent | 9d82fd2fae925efdf546cc25afdc664a2e3a2d9f (diff) | |
| download | linux-ef24ba7091517d2bbf9ba2cb4256c0dccd51d248.tar.xz | |
powerpc: Remove all usages of NO_IRQ
NO_IRQ has been == 0 on powerpc for just over ten years (since commit
0ebfff1491ef ("[POWERPC] Add new interrupt mapping core and change
platforms to use it")). It's also 0 on most other arches.
Although it's fairly harmless, every now and then it causes confusion
when a driver is built on powerpc and another arch which doesn't define
NO_IRQ. There's at least 6 definitions of NO_IRQ in drivers/, at least
some of which are to work around that problem.
So we'd like to remove it. This is fairly trivial in the arch code, we
just convert:
if (irq == NO_IRQ) to if (!irq)
if (irq != NO_IRQ) to if (irq)
irq = NO_IRQ; to irq = 0;
return NO_IRQ; to return 0;
And a few other odd cases as well.
At least for now we keep the #define NO_IRQ, because there is driver
code that uses NO_IRQ and the fixes to remove those will go via other
trees.
Note we also change some occurrences in PPC sound drivers, drivers/ps3,
and drivers/macintosh.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/sysdev/axonram.c')
| -rw-r--r-- | arch/powerpc/sysdev/axonram.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c index 9144204442eb..ada29eaed6e2 100644 --- a/arch/powerpc/sysdev/axonram.c +++ b/arch/powerpc/sysdev/axonram.c @@ -240,7 +240,7 @@ static int axon_ram_probe(struct platform_device *device) device_add_disk(&device->dev, bank->disk); bank->irq_id = irq_of_parse_and_map(device->dev.of_node, 0); - if (bank->irq_id == NO_IRQ) { + if (!bank->irq_id) { dev_err(&device->dev, "Cannot access ECC interrupt ID\n"); rc = -EFAULT; goto failed; @@ -250,7 +250,7 @@ static int axon_ram_probe(struct platform_device *device) AXON_RAM_IRQ_FLAGS, bank->disk->disk_name, device); if (rc != 0) { dev_err(&device->dev, "Cannot register ECC interrupt handler\n"); - bank->irq_id = NO_IRQ; + bank->irq_id = 0; rc = -EFAULT; goto failed; } @@ -268,7 +268,7 @@ static int axon_ram_probe(struct platform_device *device) failed: if (bank != NULL) { - if (bank->irq_id != NO_IRQ) + if (bank->irq_id) free_irq(bank->irq_id, device); if (bank->disk != NULL) { if (bank->disk->major > 0) |