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authorDominik Sliwa <dominik.sliwa@toradex.com>2019-02-21 11:35:20 +0100
committerDominik Sliwa <dominik.sliwa@toradex.com>2019-02-21 14:07:51 +0100
commit36735bb86a5e144603743bb800d7f69362d2ee2d (patch)
tree363158c7f80f3fc5a7690ca9d9ff6e5fcd7fa52e /backport/compat/backport-4.12.c
parente7720369ef69376d1244b49373e34663eaa6b5a1 (diff)
backports: reintroduce bluetooth support
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
Diffstat (limited to 'backport/compat/backport-4.12.c')
-rw-r--r--backport/compat/backport-4.12.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/backport/compat/backport-4.12.c b/backport/compat/backport-4.12.c
new file mode 100644
index 00000000..413ae7f1
--- /dev/null
+++ b/backport/compat/backport-4.12.c
@@ -0,0 +1,22 @@
+#ifdef CONFIG_OF
+#include <linux/of_device.h>
+#endif
+
+#ifdef CONFIG_OF
+/**
+ * of_device_modalias - Fill buffer with newline terminated modalias string
+ */
+ssize_t bp_of_device_modalias(struct device *dev, char *str, ssize_t len)
+{
+ ssize_t sl = of_device_get_modalias(dev, str, len - 2);
+ if (sl < 0)
+ return sl;
+ if (sl > len - 2)
+ return -ENOMEM;
+
+ str[sl++] = '\n';
+ str[sl] = 0;
+ return sl;
+}
+EXPORT_SYMBOL_GPL(bp_of_device_modalias);
+#endif