diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2014-09-14 15:34:38 +0200 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2014-09-14 15:35:36 +0200 |
commit | db985cbd67c45f875ef43cb5febfaa8cbd203c27 (patch) | |
tree | 63542d05b1c0f730ec1ad5f915dc4eb3c015e616 /drivers/base/devres.c | |
parent | c6f1224573c3b609bd8073b39f496637a16cc06f (diff) | |
parent | 468a903c0e5147e3f93187f0b808a3ef957fd00e (diff) |
Merge tag 'irqchip-core-3.18' of git://git.infradead.org/users/jcooper/linux into irq/core
irqchip core changes for v3.18
- renesas: suspend to RAM, runtime PM, cleanups and DT binding docs
- keystone: add new driver
- hip04: add Hisilicon HiP04 driver (without touching irq-gic.c)
- gic: Use defines instead of magic number, preserve v2 bybass bits
- handle_domain_irq: common low level interrupt entry handler
Diffstat (limited to 'drivers/base/devres.c')
-rw-r--r-- | drivers/base/devres.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/base/devres.c b/drivers/base/devres.c index 52302946770..69d9b0c89a0 100644 --- a/drivers/base/devres.c +++ b/drivers/base/devres.c @@ -817,6 +817,61 @@ char *devm_kstrdup(struct device *dev, const char *s, gfp_t gfp) EXPORT_SYMBOL_GPL(devm_kstrdup); /** + * devm_kvasprintf - Allocate resource managed space + * for the formatted string. + * @dev: Device to allocate memory for + * @gfp: the GFP mask used in the devm_kmalloc() call when + * allocating memory + * @fmt: the formatted string to duplicate + * @ap: the list of tokens to be placed in the formatted string + * RETURNS: + * Pointer to allocated string on success, NULL on failure. + */ +char *devm_kvasprintf(struct device *dev, gfp_t gfp, const char *fmt, + va_list ap) +{ + unsigned int len; + char *p; + va_list aq; + + va_copy(aq, ap); + len = vsnprintf(NULL, 0, fmt, aq); + va_end(aq); + + p = devm_kmalloc(dev, len+1, gfp); + if (!p) + return NULL; + + vsnprintf(p, len+1, fmt, ap); + + return p; +} +EXPORT_SYMBOL(devm_kvasprintf); + +/** + * devm_kasprintf - Allocate resource managed space + * and copy an existing formatted string into that + * @dev: Device to allocate memory for + * @gfp: the GFP mask used in the devm_kmalloc() call when + * allocating memory + * @fmt: the string to duplicate + * RETURNS: + * Pointer to allocated string on success, NULL on failure. + */ +char *devm_kasprintf(struct device *dev, gfp_t gfp, const char *fmt, ...) +{ + va_list ap; + char *p; + + va_start(ap, fmt); + p = devm_kvasprintf(dev, gfp, fmt, ap); + va_end(ap); + + return p; +} +EXPORT_SYMBOL_GPL(devm_kasprintf); + +/** * devm_kfree - Resource-managed kfree * @dev: Device this memory belongs to * @p: Memory to free |