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authorThomas Gleixner <tglx@linutronix.de>2014-09-14 15:34:38 +0200
committerThomas Gleixner <tglx@linutronix.de>2014-09-14 15:35:36 +0200
commitdb985cbd67c45f875ef43cb5febfaa8cbd203c27 (patch)
tree63542d05b1c0f730ec1ad5f915dc4eb3c015e616 /drivers/base/devres.c
parentc6f1224573c3b609bd8073b39f496637a16cc06f (diff)
parent468a903c0e5147e3f93187f0b808a3ef957fd00e (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.c55
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