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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2018-08-21 11:53:03 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-08-28 20:46:27 +0100 |
| commit | 04b2d03a75652bda989de1595048f0501dc0c0a0 (patch) | |
| tree | d9fd964eeaa90b0884756a566039284158c683a7 /drivers/spi/spi-fsl-dspi.c | |
| parent | 1a4327fbf4554d5b78d75b19a13d40d6de220159 (diff) | |
| download | linux-04b2d03a75652bda989de1595048f0501dc0c0a0.tar.bz2 | |
spi: Fix double IDR allocation with DT aliases
If the SPI bus number is provided by a DT alias, idr_alloc() is called
twice, leading to:
WARNING: CPU: 1 PID: 1 at drivers/spi/spi.c:2179 spi_register_controller+0x11c/0x5d8
couldn't get idr
Fix this by moving the handling of fixed SPI bus numbers up, before the
DT handling code fills in ctlr->bus_num.
Fixes: 1a4327fbf4554d5b ("spi: fix IDR collision on systems with both fixed and dynamic SPI bus numbers")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-fsl-dspi.c')
0 files changed, 0 insertions, 0 deletions