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memory: omap-gpmc: allow probe of child nodes to fail 

A recent commit (inadvertently?) changed how failed probe of a gpmc
child node was handled. Instead of proceeding with setting up any other
children as before, a single error now aborts the whole process.

This change broke networking on some Overo boards due to probe failing
for an unrelated nand node. This second issue should obviously be
fixed, but let's restore the old behaviour of allowing child-node
probe to fail to avoid further similar breakage on other systems.

Fixes: d2d00862df ("memory: omap-gpmc: Support general purpose input
for WAITPINs")

Cc: stable@vger.kernel.org  # v4.7+
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
This commit is contained in:
Johan Hovold 2016-07-24 14:10:58 +02:00 committed by Roger Quadros
parent 29b4817d40
commit 23540d6e2f
1 changed files with 7 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/memory/omap-gpmc.c
View File

@ -2185,7 +2185,7 @@ static int gpmc_probe_dt(struct platform_device *pdev)
return 0;
}
static int gpmc_probe_dt_children(struct platform_device *pdev)
static void gpmc_probe_dt_children(struct platform_device *pdev)
{
int ret;
struct device_node *child;
@ -2200,11 +2200,11 @@ static int gpmc_probe_dt_children(struct platform_device *pdev)
else
ret = gpmc_probe_generic_child(pdev, child);
if (ret)
return ret;
if (ret) {
dev_err(&pdev->dev, "failed to probe DT child '%s': %d\n",
child->name, ret);
}
}
return 0;
}
#else
static int gpmc_probe_dt(struct platform_device *pdev)
@ -2212,9 +2212,8 @@ static int gpmc_probe_dt(struct platform_device *pdev)
return 0;
}
static int gpmc_probe_dt_children(struct platform_device *pdev)
static void gpmc_probe_dt_children(struct platform_device *pdev)
{
return 0;
}
#endif /* CONFIG_OF */
@ -2369,16 +2368,10 @@ static int gpmc_probe(struct platform_device *pdev)
goto setup_irq_failed;
}
rc = gpmc_probe_dt_children(pdev);
if (rc < 0) {
dev_err(gpmc->dev, "failed to probe DT children\n");
goto dt_children_failed;
}
gpmc_probe_dt_children(pdev);
return 0;
dt_children_failed:
gpmc_free_irq(gpmc);
setup_irq_failed:
gpmc_gpio_exit(gpmc);
gpio_init_failed: