summaryrefslogtreecommitdiff
path: root/drivers/spi/spi-ti-qspi.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2013-12-02 10:10:55 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-12-02 10:10:55 -0800
commitaeac81033bc04c9e7e3ecf5b93f476d26d4cb25b (patch)
tree765b4fd1bafaf22267bca5af32ddb054fc57752d /drivers/spi/spi-ti-qspi.c
parent5fc92de3c7106d17f85c245383ba072d810d6bb0 (diff)
parentc18158f1fdad0de6be5386291189580484e459cf (diff)
Merge tag 'spi-v3.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown: "A smattering of driver specific fixes here, including a bunch for a long standing common pattern in the error handling paths, and a fix for an embarrassing thinko in the new devm master registration code" * tag 'spi-v3.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi/pxa2xx: Restore private register bits. spi/qspi: Fix qspi remove path. spi/qspi: cleanup pm_runtime error check. spi/qspi: set correct platform drvdata in ti_qspi_probe() spi/pxa2xx: add new ACPI IDs spi: core: invert success test in devm_spi_register_master spi: spi-mxs: fix reference leak to master in mxs_spi_remove() spi: bcm63xx: fix reference leak to master in bcm63xx_spi_remove() spi: txx9: fix reference leak to master in txx9spi_remove() spi: mpc512x: fix reference leak to master in mpc512x_psc_spi_do_remove() spi: rspi: use platform drvdata correctly in rspi_remove() spi: bcm2835: fix reference leak to master in bcm2835_spi_remove()
Diffstat (limited to 'drivers/spi/spi-ti-qspi.c')
-rw-r--r--drivers/spi/spi-ti-qspi.c23
1 files changed, 19 insertions, 4 deletions
diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
index 0b71270fbf67..4396bd448540 100644
--- a/drivers/spi/spi-ti-qspi.c
+++ b/drivers/spi/spi-ti-qspi.c
@@ -161,7 +161,7 @@ static int ti_qspi_setup(struct spi_device *spi)
qspi->spi_max_frequency, clk_div);
ret = pm_runtime_get_sync(qspi->dev);
- if (ret) {
+ if (ret < 0) {
dev_err(qspi->dev, "pm_runtime_get_sync() failed\n");
return ret;
}
@@ -459,11 +459,10 @@ static int ti_qspi_probe(struct platform_device *pdev)
if (!of_property_read_u32(np, "num-cs", &num_cs))
master->num_chipselect = num_cs;
- platform_set_drvdata(pdev, master);
-
qspi = spi_master_get_devdata(master);
qspi->master = master;
qspi->dev = &pdev->dev;
+ platform_set_drvdata(pdev, qspi);
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -517,10 +516,26 @@ free_master:
static int ti_qspi_remove(struct platform_device *pdev)
{
- struct ti_qspi *qspi = platform_get_drvdata(pdev);
+ struct spi_master *master;
+ struct ti_qspi *qspi;
+ int ret;
+
+ master = platform_get_drvdata(pdev);
+ qspi = spi_master_get_devdata(master);
+
+ ret = pm_runtime_get_sync(qspi->dev);
+ if (ret < 0) {
+ dev_err(qspi->dev, "pm_runtime_get_sync() failed\n");
+ return ret;
+ }
ti_qspi_write(qspi, QSPI_WC_INT_DISABLE, QSPI_INTR_ENABLE_CLEAR_REG);
+ pm_runtime_put(qspi->dev);
+ pm_runtime_disable(&pdev->dev);
+
+ spi_unregister_master(master);
+
return 0;
}