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pata_octeon_cf: use devm_kzalloc() to allocate cf_port 

As a nice side effect this fixes the cf_port leak on
dma_coerce_mask_and_coherent() or ata_host_activate()
failure.

Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Daney <david.daney@cavium.com>
Suggested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2014-04-14 18:28:37 +02:00 committed by Tejun Heo
parent c9eaa447e7
commit 7a56c0ba26
1 changed files with 17 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
drivers/ata/pata_octeon_cf.c
View File

@ -865,7 +865,7 @@ static int octeon_cf_probe(struct platform_device *pdev)
if (node == NULL)
return -EINVAL;
cf_port = kzalloc(sizeof(*cf_port), GFP_KERNEL);
cf_port = devm_kzalloc(&pdev->dev, sizeof(*cf_port), GFP_KERNEL);
if (!cf_port)
return -ENOMEM;
@ -881,10 +881,9 @@ static int octeon_cf_probe(struct platform_device *pdev)
n_size = of_n_size_cells(node);
reg_prop = of_find_property(node, "reg", &reg_len);
if (!reg_prop || reg_len < sizeof(__be32)) {
rv = -EINVAL;
goto free_cf_port;
}
if (!reg_prop || reg_len < sizeof(__be32))
return -EINVAL;
cs_num = reg_prop->value;
cf_port->cs0 = be32_to_cpup(cs_num);
@ -901,16 +900,13 @@ static int octeon_cf_probe(struct platform_device *pdev)
res_dma = platform_get_resource(dma_dev, IORESOURCE_MEM, 0);
if (!res_dma) {
of_node_put(dma_node);
rv = -EINVAL;
goto free_cf_port;
return -EINVAL;
}
cf_port->dma_base = (u64)devm_ioremap_nocache(&pdev->dev, res_dma->start,
resource_size(res_dma));
if (!cf_port->dma_base) {
of_node_put(dma_node);
rv = -EINVAL;
goto free_cf_port;
return -EINVAL;
}
irq_handler = octeon_cf_interrupt;
@ -921,41 +917,34 @@ static int octeon_cf_probe(struct platform_device *pdev)
of_node_put(dma_node);
}
res_cs1 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!res_cs1) {
rv = -EINVAL;
goto free_cf_port;
}
if (!res_cs1)
return -EINVAL;
cs1 = devm_ioremap_nocache(&pdev->dev, res_cs1->start,
resource_size(res_cs1));
if (!cs1)
goto free_cf_port;
return rv;
if (reg_len < (n_addr + n_size + 1) * sizeof(__be32))
return -EINVAL;
if (reg_len < (n_addr + n_size + 1) * sizeof(__be32)) {
rv = -EINVAL;
goto free_cf_port;
}
cs_num += n_addr + n_size;
cf_port->cs1 = be32_to_cpup(cs_num);
}
res_cs0 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res_cs0) {
rv = -EINVAL;
goto free_cf_port;
}
if (!res_cs0)
return -EINVAL;
cs0 = devm_ioremap_nocache(&pdev->dev, res_cs0->start,
resource_size(res_cs0));
if (!cs0)
goto free_cf_port;
return rv;
/* allocate host */
host = ata_host_alloc(&pdev->dev, 1);
if (!host)
goto free_cf_port;
return rv;
ap = host->ports[0];
ap->private_data = cf_port;
@ -1020,17 +1009,12 @@ static int octeon_cf_probe(struct platform_device *pdev)
ata_port_desc(ap, "cmd %p ctl %p", base, ap->ioaddr.ctl_addr);
dev_info(&pdev->dev, "version " DRV_VERSION" %d bit%s.\n",
is_16bit ? 16 : 8,
cf_port->is_true_ide ? ", True IDE" : "");
return ata_host_activate(host, irq, irq_handler,
IRQF_SHARED, &octeon_cf_sht);
free_cf_port:
kfree(cf_port);
return rv;
}
static void octeon_cf_shutdown(struct device *dev)