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Date: Tue, 11 Jan 2022 09:26:22 +0800 From: Yang Li <yang.lee@...ux.alibaba.com> To: kys@...rosoft.com Cc: haiyangz@...rosoft.com, sthemmin@...rosoft.com, wei.liu@...nel.org, decui@...rosoft.com, lorenzo.pieralisi@....com, robh@...nel.org, kw@...ux.com, bhelgaas@...gle.com, linux-hyperv@...r.kernel.org, linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org, Yang Li <yang.lee@...ux.alibaba.com>, Abaci Robot <abaci@...ux.alibaba.com> Subject: [PATCH -next] PCI: hv: Unsigned comparison with less than zero The return from the call to bitmap_find_free_region() is int, it can be a negative error code, however this is being assigned to an unsigned int variable 'index', so making 'index' an int. Eliminate the following coccicheck warning: ./drivers/pci/controller/pci-hyperv.c:712:5-10: WARNING: Unsigned expression compared with zero: index < 0 Reported-by: Abaci Robot <abaci@...ux.alibaba.com> Signed-off-by: Yang Li <yang.lee@...ux.alibaba.com> --- drivers/pci/controller/pci-hyperv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c index 26c9c8ec0989..20ea2ee330b8 100644 --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -701,7 +701,7 @@ static int hv_pci_vec_alloc_device_irq(struct irq_domain *domain, irq_hw_number_t *hwirq) { struct hv_pci_chip_data *chip_data = domain->host_data; - unsigned int index; + int index; /* Find and allocate region from the SPI bitmap */ mutex_lock(&chip_data->map_lock); -- 2.20.1.7.g153144c
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