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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-27 11:21:11 +0900 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2010-07-30 09:29:10 -0700 |
| commit | f6735590e9f441762ab5afeff64ded99e5b19a68 (patch) | |
| tree | 58e15ba0d4c00195da9e9b199b7fc73de7f51e64 /drivers/pci/pcie | |
| parent | 73cd3b43f08cc9a9bcb168994b8e9ebd983ff573 (diff) | |
| download | op-kernel-dev-f6735590e9f441762ab5afeff64ded99e5b19a68.zip op-kernel-dev-f6735590e9f441762ab5afeff64ded99e5b19a68.tar.gz | |
PCI aerdrv: fix annoying warnings
Some compiler generates following warnings:
In function 'aer_isr':
warning: 'e_src.id' may be used uninitialized in this function
warning: 'e_src.status' may be used uninitialized in this function
Avoid status flag "int ret" and return constants instead, so that
gcc sees the return value matching "it is initialized" better.
Acked-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/pcie')
| -rw-r--r-- | drivers/pci/pcie/aer/aerdrv_core.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c index 8af4f61..fc0b5a9 100644 --- a/drivers/pci/pcie/aer/aerdrv_core.c +++ b/drivers/pci/pcie/aer/aerdrv_core.c @@ -727,20 +727,21 @@ static void aer_isr_one_error(struct pcie_device *p_device, static int get_e_source(struct aer_rpc *rpc, struct aer_err_source *e_src) { unsigned long flags; - int ret = 0; /* Lock access to Root error producer/consumer index */ spin_lock_irqsave(&rpc->e_lock, flags); - if (rpc->prod_idx != rpc->cons_idx) { - *e_src = rpc->e_sources[rpc->cons_idx]; - rpc->cons_idx++; - if (rpc->cons_idx == AER_ERROR_SOURCES_MAX) - rpc->cons_idx = 0; - ret = 1; + if (rpc->prod_idx == rpc->cons_idx) { + spin_unlock_irqrestore(&rpc->e_lock, flags); + return 0; } + + *e_src = rpc->e_sources[rpc->cons_idx]; + rpc->cons_idx++; + if (rpc->cons_idx == AER_ERROR_SOURCES_MAX) + rpc->cons_idx = 0; spin_unlock_irqrestore(&rpc->e_lock, flags); - return ret; + return 1; } /** |
