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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 04:15:07 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 04:15:07 +0000
commit7fd92ba31ac1c688b59aa93cc03b748f920df8fe (patch)
treebaa580b97c260c790730e2525483eb1953f3c39d /drivers/base/dd.c
parentAdding upstream version 4.19.269. (diff)
downloadlinux-7fd92ba31ac1c688b59aa93cc03b748f920df8fe.tar.xz
linux-7fd92ba31ac1c688b59aa93cc03b748f920df8fe.zip
Adding upstream version 4.19.282.upstream/4.19.282
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/base/dd.c')
-rw-r--r--drivers/base/dd.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 63390a416..6a2aa8562 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -220,7 +220,16 @@ static int deferred_devs_show(struct seq_file *s, void *data)
}
DEFINE_SHOW_ATTRIBUTE(deferred_devs);
+#ifdef CONFIG_MODULES
+/*
+ * In the case of modules, set the default probe timeout to
+ * 30 seconds to give userland some time to load needed modules
+ */
+static int deferred_probe_timeout = 30;
+#else
+/* In the case of !modules, no probe timeout needed */
static int deferred_probe_timeout = -1;
+#endif
static int __init deferred_probe_timeout_setup(char *str)
{
deferred_probe_timeout = simple_strtol(str, NULL, 10);
@@ -902,8 +911,12 @@ static int __driver_attach(struct device *dev, void *data)
*/
return 0;
} else if (ret < 0) {
- dev_dbg(dev, "Bus failed to match device: %d", ret);
- return ret;
+ dev_dbg(dev, "Bus failed to match device: %d\n", ret);
+ /*
+ * Driver could not match with device, but may match with
+ * another device on the bus.
+ */
+ return 0;
} /* ret > 0 means positive match */
if (dev->parent && dev->bus->need_parent_lock)