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Date: Fri, 07 Oct 2011 10:05:25 +0500 From: "G, Manjunath Kondaiah" <manjugk@...com> To: linux-arm-kernel@...ts.infradead.org CC: Mark Brown <broonie@...nsource.wolfsonmicro.com>, linux-omap@...r.kernel.org, linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org, Grant Likely <grant.likely@...retlab.ca>, Greg Kroah-Hartman <greg@...ah.com>, Dilan Lee <dilee@...dia.com>, Manjunath GKondaiah <manjunath.gkondaiah@...aro.org>, Arnd Bergmann <arnd@...db.de> Subject: [PATCH 3/5] regulator: Support driver probe deferral From: Mark Brown <broonie@...nsource.wolfsonmicro.com> If we fail to locate a requested regulator return -EPROBE_DEFER. If drivers pass this error code through to their caller (which they really should) then this will ensure that the probe is retried later when further devices become available. Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com> [manjugk@...com: changed error value from EAGAIN to EPROBE_DEFER] Signed-off-by: G, Manjunath Kondaiah <manjugk@...com> Acked-by: Grant Likely <grant.likely@...retlab.ca> Acked-by: Liam Girdwood <lrg@...com> --- Cc: linux-omap@...r.kernel.org Cc: linux-mmc@...r.kernel.org Cc: linux-kernel@...r.kernel.org Cc: Grant Likely <grant.likely@...retlab.ca> Cc: Greg Kroah-Hartman <greg@...ah.com> Cc: Dilan Lee <dilee@...dia.com> Cc: Mark Brown <broonie@...nsource.wolfsonmicro.com> Cc: Manjunath GKondaiah <manjunath.gkondaiah@...aro.org> Cc: Arnd Bergmann <arnd@...db.de> drivers/regulator/core.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index d8e6a42..95dfd21 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1153,7 +1153,7 @@ static struct regulator *_regulator_get(struct device *dev, const char *id, { struct regulator_dev *rdev; struct regulator_map *map; - struct regulator *regulator = ERR_PTR(-ENODEV); + struct regulator *regulator = ERR_PTR(-EPROBE_DEFER); const char *devname = NULL; int ret; @@ -2668,7 +2668,7 @@ struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc, if (!found) { dev_err(dev, "Failed to find supply %s\n", init_data->supply_regulator); - ret = -ENODEV; + ret = -EPROBE_DEFER; goto scrub; } -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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