clkdev: Update clkdev id usage to allow for longer names

clkdev DEV ID information is limited to an array of 20 bytes
(MAX_DEV_ID).  It is possible that the ID could be longer than
that.  If so, the lookup will fail because the "real ID" will
not match the copied value.

For instance, generating a device name for the I2C Designware
module using the PCI ID can result in a name of:

i2c_designware.39424

clkdev_create() will store:

i2c_designware.3942

The stored name is one off and will not match correctly during probe.

Increase the size of the ID to allow for a longer name.

Reviewed-by: Russell King (Oracle) <[email protected]>
Signed-off-by: Michael J. Ruhl <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Andy Shevchenko <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>

diff --git a/drivers/clk/clkdev.c b/drivers/clk/clkdev.c
index ee37d0be6877db7070f51ad264bdc1a9da02d36a..9cd80522ca2d772c9b9cd7324405c72102318af9 100644 (file)
--- a/drivers/clk/clkdev.c
+++ b/drivers/clk/clkdev.c
@@ -144,7 +144,7 @@ void clkdev_add_table(struct clk_lookup *cl, size_t num)
        mutex_unlock(&clocks_mutex);
 }
 
-#define MAX_DEV_ID     20
+#define MAX_DEV_ID     24
 #define MAX_CON_ID     16
 
 struct clk_lookup_alloc {