[PATCH 48/50] staging: most: core: fix list traversing
Christian Gromm
christian.gromm at microchip.com
Tue Nov 21 14:05:22 UTC 2017
From: Andrey Shvetsov <andrey.shvetsov at k2l.de>
This patch fixes the offset and data handling when traversing
the list of devices that are attached to the bus.
Signed-off-by: Christian Gromm <christian.gromm at microchip.com>
---
drivers/staging/most/core.c | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/most/core.c b/drivers/staging/most/core.c
index d03ff97..9729206 100644
--- a/drivers/staging/most/core.c
+++ b/drivers/staging/most/core.c
@@ -535,10 +535,16 @@ static struct core_component *match_component(char *name)
return NULL;
}
+struct show_links_data {
+ int offs;
+ char *buf;
+};
+
int print_links(struct device *dev, void *data)
{
- int offs = 0;
- char *buf = data;
+ struct show_links_data *d = data;
+ int offs = d->offs;
+ char *buf = d->buf;
struct most_channel *c;
struct most_interface *iface = to_most_interface(dev);
@@ -560,13 +566,16 @@ int print_links(struct device *dev, void *data)
dev_name(&c->dev));
}
}
+ d->offs = offs;
return 0;
}
static ssize_t links_show(struct device_driver *drv, char *buf)
{
- bus_for_each_dev(&mc.bus, NULL, buf, print_links);
- return strlen(buf);
+ struct show_links_data d = { .buf = buf };
+
+ bus_for_each_dev(&mc.bus, NULL, &d, print_links);
+ return d.offs;
}
static ssize_t components_show(struct device_driver *drv, char *buf)
--
2.7.4
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