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authorLinus Torvalds <torvalds@linux-foundation.org>2010-04-30 12:57:55 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-04-30 12:57:55 -0400
commit8f2adb7cab81fc4984ddfe3a1efd1b62d52bead8 (patch)
tree75f48007900d3386cfaa0e9d5ad460f6c51f1635 /drivers/spi/spi.c
parent66f41d4c5c8a5deed66fdcc84509376c9a0bf9d8 (diff)
parent95b1ed2ac7ffe3205afc6f5a20320fbdb984da92 (diff)
Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6
* 'merge' of git://git.secretlab.ca/git/linux-2.6: spi: spidev_test gives error upon 1-byte transfer omap2_mcspi: small fixes of output data format omap2_mcspi: Flush posted writes spi: spi_device memory should be released instead of device. spi: release device claimed by bus_find_device_by_name of: check for IS_ERR() serial/mpc52xx_uart: Drop outdated comments gpio: potential null dereference
Diffstat (limited to 'drivers/spi/spi.c')
-rw-r--r--drivers/spi/spi.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 9ffb0fdbd6fe..b3a1f9259b62 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -41,7 +41,7 @@ static void spidev_release(struct device *dev)
41 spi->master->cleanup(spi); 41 spi->master->cleanup(spi);
42 42
43 spi_master_put(spi->master); 43 spi_master_put(spi->master);
44 kfree(dev); 44 kfree(spi);
45} 45}
46 46
47static ssize_t 47static ssize_t
@@ -257,6 +257,7 @@ int spi_add_device(struct spi_device *spi)
257{ 257{
258 static DEFINE_MUTEX(spi_add_lock); 258 static DEFINE_MUTEX(spi_add_lock);
259 struct device *dev = spi->master->dev.parent; 259 struct device *dev = spi->master->dev.parent;
260 struct device *d;
260 int status; 261 int status;
261 262
262 /* Chipselects are numbered 0..max; validate. */ 263 /* Chipselects are numbered 0..max; validate. */
@@ -278,10 +279,11 @@ int spi_add_device(struct spi_device *spi)
278 */ 279 */
279 mutex_lock(&spi_add_lock); 280 mutex_lock(&spi_add_lock);
280 281
281 if (bus_find_device_by_name(&spi_bus_type, NULL, dev_name(&spi->dev)) 282 d = bus_find_device_by_name(&spi_bus_type, NULL, dev_name(&spi->dev));
282 != NULL) { 283 if (d != NULL) {
283 dev_err(dev, "chipselect %d already in use\n", 284 dev_err(dev, "chipselect %d already in use\n",
284 spi->chip_select); 285 spi->chip_select);
286 put_device(d);
285 status = -EBUSY; 287 status = -EBUSY;
286 goto done; 288 goto done;
287 } 289 }