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| author | Jonas Jelonek <jelonek.jonas@gmail.com> | 2025-08-31 10:04:46 +0000 |
|---|---|---|
| committer | Andi Shyti <andi.shyti@kernel.org> | 2025-09-04 00:31:23 +0200 |
| commit | cd6c956fbc13156bcbcca084b46a8380caebc2a8 (patch) | |
| tree | f6b03c4004a9430bebcec31ef13c7f61e19f211a /tools/perf/scripts/python | |
| parent | 664596bd98bb251dd417dfd3f9b615b661e1e44a (diff) | |
i2c: rtl9300: fix channel number bound check
Fix the current check for number of channels (child nodes in the device
tree). Before, this was:
if (device_get_child_node_count(dev) >= RTL9300_I2C_MUX_NCHAN)
RTL9300_I2C_MUX_NCHAN gives the maximum number of channels so checking
with '>=' isn't correct because it doesn't allow the last channel
number. Thus, fix it to:
if (device_get_child_node_count(dev) > RTL9300_I2C_MUX_NCHAN)
Issue occured on a TP-Link TL-ST1008F v2.0 device (8 SFP+ ports) and fix
is tested there.
Fixes: c366be720235 ("i2c: Add driver for the RTL9300 I2C controller")
Cc: stable@vger.kernel.org # v6.13+
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
Tested-by: Sven Eckelmann <sven@narfation.org>
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz> # On RTL9302C based board
Tested-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20250831100457.3114-2-jelonek.jonas@gmail.com
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions