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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>
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@ -727,20 +727,21 @@ static void aer_isr_one_error(struct pcie_device *p_device,
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static int get_e_source(struct aer_rpc *rpc, struct aer_err_source *e_src)
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{
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unsigned long flags;
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int ret = 0;
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/* Lock access to Root error producer/consumer index */
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spin_lock_irqsave(&rpc->e_lock, flags);
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if (rpc->prod_idx != rpc->cons_idx) {
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*e_src = rpc->e_sources[rpc->cons_idx];
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rpc->cons_idx++;
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if (rpc->cons_idx == AER_ERROR_SOURCES_MAX)
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rpc->cons_idx = 0;
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ret = 1;
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if (rpc->prod_idx == rpc->cons_idx) {
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spin_unlock_irqrestore(&rpc->e_lock, flags);
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return 0;
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}
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*e_src = rpc->e_sources[rpc->cons_idx];
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rpc->cons_idx++;
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if (rpc->cons_idx == AER_ERROR_SOURCES_MAX)
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rpc->cons_idx = 0;
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spin_unlock_irqrestore(&rpc->e_lock, flags);
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return ret;
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return 1;
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}
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/**
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