devm_kvasprintf — Allocate resource managed space and format a string into that.
| char * devm_kvasprintf ( | struct device * dev, | 
| gfp_t gfp, | |
| const char * fmt, | |
| va_list ap ); | 
devDevice to allocate memory for
gfp
     the GFP mask used in the devm_kmalloc call when
     allocating memory
    
fmt
     The printf-style format string
    
apArguments for the format string