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Commit 9cf58a45 authored by Bartosz Golaszewski's avatar Bartosz Golaszewski Committed by Sekhar Nori
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ARM: davinci: cp-intc: request the memory region before remapping it 



Add a missing call to request_mem_region() before calling ioremap() to
make sure it's not been requested by another user.

Reviewed-by: default avatarDavid Lechner <david@lechnology.com>
Signed-off-by: default avatarBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: default avatarSekhar Nori <nsekhar@ti.com>
parent 6567954b

arch/arm/mach-davinci/cp_intc.c

+9 −0
Original line number Diff line number Diff line
@@ -164,6 +164,15 @@ davinci_cp_intc_do_init(const struct davinci_cp_intc_config *config, 
{

	unsigned int num_regs = BITS_TO_LONGS(config->num_irqs);

	int offset, irq_base;

	void __iomem *req;



	req = request_mem_region(config->reg.start,

				 resource_size(&config->reg),

				 "davinci-cp-intc");

	if (!req) {

		pr_err("%s: register range busy\n", __func__);

		return -EBUSY;

	}



	davinci_cp_intc_base = ioremap(config->reg.start,

				       resource_size(&config->reg));