Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1244803

Re: [PATCH 05/25] scsi: hisi_sas: allocate memories and create pools

From Arnd Bergmann <arnd@arndb.de>
Newsgroups linux.kernel
Subject Re: [PATCH 05/25] scsi: hisi_sas: allocate memories and create pools
Date 2015-10-12 17:20 +0200
Message-ID <qiN3k-2LY-25@gated-at.bofh.it> (permalink)
References <qiN3k-2LY-27@gated-at.bofh.it> <qiN3k-2LY-29@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On Monday 12 October 2015 23:20:17 John Garry wrote:
> +       interrupt_count = of_property_count_u32_elems(np, "interrupts");
> +       if (interrupt_count < 0)
> +               goto err_out;
> +
> +       if (of_property_read_u32(np, "#interrupt-cells", &interrupt_cells))
> +               goto err_out;
> +
> +       hisi_hba->int_names = devm_kcalloc(&pdev->dev,
> +                                          interrupt_count / interrupt_cells,
> +                                          HISI_SAS_NAME_LEN,
> +                                          GFP_KERNEL);
> 

This computation looks wrong: the "interrupts" property refers to interrupts
that are referenced by this node and provided by an interrupt-controller,
while the "#interrupt-cells" property refers to interrupts provided by
this node. They don't need to have any relation.

	Arnd
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread


Thread

Re: [PATCH 05/25] scsi: hisi_sas: allocate memories and create pools Arnd Bergmann <arnd@arndb.de> - 2015-10-12 17:20 +0200
  Re: [PATCH 05/25] scsi: hisi_sas: allocate memories and create pools zhangfei <zhangfei.gao@linaro.org> - 2015-10-13 11:50 +0200

csiph-web